From 53466710202900ce49e471f480cac11275e1d0c4 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Tue, 6 Dec 2011 17:06:06 -0600 Subject: jffs2: fix up error handling for insert_inode_locked after 250df6ed274d767da844a5d9f05720b804240197 (fs: protect inode->i_state with inode->i_lock), insert_inode_locked() no longer returns the inode with I_NEW set on failure. However, the error handler still calls unlock_new_inode() on failure, which does a WARN_ON if I_NEW is not set, so any failure spews a lot of warnings. We can just drop the unlock_new_inode() if insert_inode_locked() fails here. Signed-off-by: Eric Sandeen Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/fs.c | 1 - 1 file changed, 1 deletion(-) (limited to 'fs') diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 4b8afe39a87..2e0123867cb 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -466,7 +466,6 @@ struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode, struct jffs2_r if (insert_inode_locked(inode) < 0) { make_bad_inode(inode); - unlock_new_inode(inode); iput(inode); return ERR_PTR(-EINVAL); } -- cgit v1.2.3 From 48d3610268cef9cea0704119a74a00d1bf82f536 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 15:44:14 +0200 Subject: logfs: rename functions starting with mtd_ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We are going to re-work the MTD interface and change 'mtd->write()' to 'mtd_write()', 'mtd->read()' to 'mtd_read()' and so forth for all functions in the 'struct mtd_info' structure. However, logfs has its own 'mtd_read()', 'mtd_write()', etc functions which collide with our changes. This patch renames these logfs functions to 'logfs_mtd_read()', 'logfs_mtd_write()', etc. Additionally, to make the 'fs/logfs/dev_mtd.c' file look consistent, rename similarly all the other functions starting with 'mtd_'. Cc: Jörn Engel Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/logfs/dev_mtd.c | 61 ++++++++++++++++++++++++++++-------------------------- 1 file changed, 32 insertions(+), 29 deletions(-) (limited to 'fs') diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index 339e17e9133..eb423ebcf53 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -13,7 +13,8 @@ #define PAGE_OFS(ofs) ((ofs) & (PAGE_SIZE-1)) -static int mtd_read(struct super_block *sb, loff_t ofs, size_t len, void *buf) +static int logfs_mtd_read(struct super_block *sb, loff_t ofs, size_t len, + void *buf) { struct mtd_info *mtd = logfs_super(sb)->s_mtd; size_t retlen; @@ -31,7 +32,8 @@ static int mtd_read(struct super_block *sb, loff_t ofs, size_t len, void *buf) return 0; } -static int mtd_write(struct super_block *sb, loff_t ofs, size_t len, void *buf) +static int loffs_mtd_write(struct super_block *sb, loff_t ofs, size_t len, + void *buf) { struct logfs_super *super = logfs_super(sb); struct mtd_info *mtd = super->s_mtd; @@ -60,14 +62,15 @@ static int mtd_write(struct super_block *sb, loff_t ofs, size_t len, void *buf) * asynchronous properties. So just to prevent the first implementor of such * a thing from breaking logfs in 2350, we do the usual pointless dance to * declare a completion variable and wait for completion before returning - * from mtd_erase(). What an exercise in futility! + * from logfs_mtd_erase(). What an exercise in futility! */ static void logfs_erase_callback(struct erase_info *ei) { complete((struct completion *)ei->priv); } -static int mtd_erase_mapping(struct super_block *sb, loff_t ofs, size_t len) +static int logfs_mtd_erase_mapping(struct super_block *sb, loff_t ofs, + size_t len) { struct logfs_super *super = logfs_super(sb); struct address_space *mapping = super->s_mapping_inode->i_mapping; @@ -84,7 +87,7 @@ static int mtd_erase_mapping(struct super_block *sb, loff_t ofs, size_t len) return 0; } -static int mtd_erase(struct super_block *sb, loff_t ofs, size_t len, +static int logfs_mtd_erase(struct super_block *sb, loff_t ofs, size_t len, int ensure_write) { struct mtd_info *mtd = logfs_super(sb)->s_mtd; @@ -109,10 +112,10 @@ static int mtd_erase(struct super_block *sb, loff_t ofs, size_t len, wait_for_completion(&complete); if (ei.state != MTD_ERASE_DONE) return -EIO; - return mtd_erase_mapping(sb, ofs, len); + return logfs_mtd_erase_mapping(sb, ofs, len); } -static void mtd_sync(struct super_block *sb) +static void logfs_mtd_sync(struct super_block *sb) { struct mtd_info *mtd = logfs_super(sb)->s_mtd; @@ -120,12 +123,12 @@ static void mtd_sync(struct super_block *sb) mtd->sync(mtd); } -static int mtd_readpage(void *_sb, struct page *page) +static int logfs_mtd_readpage(void *_sb, struct page *page) { struct super_block *sb = _sb; int err; - err = mtd_read(sb, page->index << PAGE_SHIFT, PAGE_SIZE, + err = logfs_mtd_read(sb, page->index << PAGE_SHIFT, PAGE_SIZE, page_address(page)); if (err == -EUCLEAN || err == -EBADMSG) { /* -EBADMSG happens regularly on power failures */ @@ -143,11 +146,11 @@ static int mtd_readpage(void *_sb, struct page *page) return err; } -static struct page *mtd_find_first_sb(struct super_block *sb, u64 *ofs) +static struct page *logfs_mtd_find_first_sb(struct super_block *sb, u64 *ofs) { struct logfs_super *super = logfs_super(sb); struct address_space *mapping = super->s_mapping_inode->i_mapping; - filler_t *filler = mtd_readpage; + filler_t *filler = logfs_mtd_readpage; struct mtd_info *mtd = super->s_mtd; if (!mtd->block_isbad) @@ -163,11 +166,11 @@ static struct page *mtd_find_first_sb(struct super_block *sb, u64 *ofs) return read_cache_page(mapping, *ofs >> PAGE_SHIFT, filler, sb); } -static struct page *mtd_find_last_sb(struct super_block *sb, u64 *ofs) +static struct page *logfs_mtd_find_last_sb(struct super_block *sb, u64 *ofs) { struct logfs_super *super = logfs_super(sb); struct address_space *mapping = super->s_mapping_inode->i_mapping; - filler_t *filler = mtd_readpage; + filler_t *filler = logfs_mtd_readpage; struct mtd_info *mtd = super->s_mtd; if (!mtd->block_isbad) @@ -184,7 +187,7 @@ static struct page *mtd_find_last_sb(struct super_block *sb, u64 *ofs) return read_cache_page(mapping, *ofs >> PAGE_SHIFT, filler, sb); } -static int __mtd_writeseg(struct super_block *sb, u64 ofs, pgoff_t index, +static int __logfs_mtd_writeseg(struct super_block *sb, u64 ofs, pgoff_t index, size_t nr_pages) { struct logfs_super *super = logfs_super(sb); @@ -196,8 +199,8 @@ static int __mtd_writeseg(struct super_block *sb, u64 ofs, pgoff_t index, page = find_lock_page(mapping, index + i); BUG_ON(!page); - err = mtd_write(sb, page->index << PAGE_SHIFT, PAGE_SIZE, - page_address(page)); + err = loffs_mtd_write(sb, page->index << PAGE_SHIFT, PAGE_SIZE, + page_address(page)); unlock_page(page); page_cache_release(page); if (err) @@ -206,7 +209,7 @@ static int __mtd_writeseg(struct super_block *sb, u64 ofs, pgoff_t index, return 0; } -static void mtd_writeseg(struct super_block *sb, u64 ofs, size_t len) +static void logfs_mtd_writeseg(struct super_block *sb, u64 ofs, size_t len) { struct logfs_super *super = logfs_super(sb); int head; @@ -227,15 +230,15 @@ static void mtd_writeseg(struct super_block *sb, u64 ofs, size_t len) len += head; } len = PAGE_ALIGN(len); - __mtd_writeseg(sb, ofs, ofs >> PAGE_SHIFT, len >> PAGE_SHIFT); + __logfs_mtd_writeseg(sb, ofs, ofs >> PAGE_SHIFT, len >> PAGE_SHIFT); } -static void mtd_put_device(struct logfs_super *s) +static void logfs_mtd_put_device(struct logfs_super *s) { put_mtd_device(s->s_mtd); } -static int mtd_can_write_buf(struct super_block *sb, u64 ofs) +static int logfs_mtd_can_write_buf(struct super_block *sb, u64 ofs) { struct logfs_super *super = logfs_super(sb); void *buf; @@ -244,7 +247,7 @@ static int mtd_can_write_buf(struct super_block *sb, u64 ofs) buf = kmalloc(super->s_writesize, GFP_KERNEL); if (!buf) return -ENOMEM; - err = mtd_read(sb, ofs, super->s_writesize, buf); + err = logfs_mtd_read(sb, ofs, super->s_writesize, buf); if (err) goto out; if (memchr_inv(buf, 0xff, super->s_writesize)) @@ -255,14 +258,14 @@ out: } static const struct logfs_device_ops mtd_devops = { - .find_first_sb = mtd_find_first_sb, - .find_last_sb = mtd_find_last_sb, - .readpage = mtd_readpage, - .writeseg = mtd_writeseg, - .erase = mtd_erase, - .can_write_buf = mtd_can_write_buf, - .sync = mtd_sync, - .put_device = mtd_put_device, + .find_first_sb = logfs_mtd_find_first_sb, + .find_last_sb = logfs_mtd_find_last_sb, + .readpage = logfs_mtd_readpage, + .writeseg = logfs_mtd_writeseg, + .erase = logfs_mtd_erase, + .can_write_buf = logfs_mtd_can_write_buf, + .sync = logfs_mtd_sync, + .put_device = logfs_mtd_put_device, }; int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr) -- cgit v1.2.3 From 7e1f0dc0551b99acb5e8fa161a7ac401994d57d8 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 15:25:39 +0200 Subject: mtd: introduce mtd_erase interface This patch is part of a patch-set which changes the MTD interface from 'mtd->func()' form to 'mtd_func()' form. We need this because we want to add common code to to all drivers in the mtd core level, which is impossible with the current interface when MTD clients call driver functions like 'read()' or 'write()' directly. At this point we just introduce a new inline wrapper function, but later some of them are expected to gain more code. E.g., the input parameters check should be moved to the wrappers rather than be duplicated at many drivers. This particular patch introduced the 'mtd_erase()' interface. The following patches add all the other interfaces one by one. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/erase.c | 2 +- fs/logfs/dev_mtd.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index e513f1913c1..540e8eca1b4 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -74,7 +74,7 @@ static void jffs2_erase_block(struct jffs2_sb_info *c, ((struct erase_priv_struct *)instr->priv)->jeb = jeb; ((struct erase_priv_struct *)instr->priv)->c = c; - ret = c->mtd->erase(c->mtd, instr); + ret = mtd_erase(c->mtd, instr); if (!ret) return; diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index eb423ebcf53..04636289435 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -105,7 +105,7 @@ static int logfs_mtd_erase(struct super_block *sb, loff_t ofs, size_t len, ei.len = len; ei.callback = logfs_erase_callback; ei.priv = (long)&complete; - ret = mtd->erase(mtd, &ei); + ret = mtd_erase(mtd, &ei); if (ret) return -EIO; -- cgit v1.2.3 From d35ea200c0fb5315f16fb2599a4bafd9c1a7b386 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 17:00:37 +0200 Subject: mtd: introduce mtd_point interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/erase.c | 4 ++-- fs/jffs2/readinode.c | 4 ++-- fs/jffs2/scan.c | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index 540e8eca1b4..53f8794fda6 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -340,8 +340,8 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl if (c->mtd->point) { unsigned long *wordebuf; - ret = c->mtd->point(c->mtd, jeb->offset, c->sector_size, - &retlen, &ebuf, NULL); + ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen, + &ebuf, NULL); if (ret) { D1(printk(KERN_DEBUG "MTD point failed %d\n", ret)); goto do_flash_read; diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c index ee57bac1ba6..dde61effeda 100644 --- a/fs/jffs2/readinode.c +++ b/fs/jffs2/readinode.c @@ -63,8 +63,8 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info /* TODO: instead, incapsulate point() stuff to jffs2_flash_read(), * adding and jffs2_flash_read_end() interface. */ if (c->mtd->point) { - err = c->mtd->point(c->mtd, ofs, len, &retlen, - (void **)&buffer, NULL); + err = mtd_point(c->mtd, ofs, len, &retlen, (void **)&buffer, + NULL); if (!err && retlen < len) { JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize); c->mtd->unpoint(c->mtd, ofs, retlen); diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c index 28107ca136e..53e05c8e5b6 100644 --- a/fs/jffs2/scan.c +++ b/fs/jffs2/scan.c @@ -97,8 +97,8 @@ int jffs2_scan_medium(struct jffs2_sb_info *c) size_t pointlen, try_size; if (c->mtd->point) { - ret = c->mtd->point(c->mtd, 0, c->mtd->size, &pointlen, - (void **)&flashbuf, NULL); + ret = mtd_point(c->mtd, 0, c->mtd->size, &pointlen, + (void **)&flashbuf, NULL); if (!ret && pointlen < c->mtd->size) { /* Don't muck about if it won't let us point to the whole flash */ D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", pointlen)); -- cgit v1.2.3 From 7219778ad9c18cc2c05c7fca0abe026afbc19dfb Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 17:05:52 +0200 Subject: mtd: introduce mtd_unpoint interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/erase.c | 4 ++-- fs/jffs2/readinode.c | 6 +++--- fs/jffs2/scan.c | 4 ++-- 3 files changed, 7 insertions(+), 7 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index 53f8794fda6..ffdf4fca9c5 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -349,7 +349,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl if (retlen < c->sector_size) { /* Don't muck about if it won't let us point to the whole erase sector */ D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", retlen)); - c->mtd->unpoint(c->mtd, jeb->offset, retlen); + mtd_unpoint(c->mtd, jeb->offset, retlen); goto do_flash_read; } wordebuf = ebuf-sizeof(*wordebuf); @@ -358,7 +358,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl if (*++wordebuf != ~0) break; } while(--retlen); - c->mtd->unpoint(c->mtd, jeb->offset, c->sector_size); + mtd_unpoint(c->mtd, jeb->offset, c->sector_size); if (retlen) { printk(KERN_WARNING "Newly-erased block contained word 0x%lx at offset 0x%08tx\n", *wordebuf, jeb->offset + c->sector_size-retlen*sizeof(*wordebuf)); diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c index dde61effeda..fca2f84e1ad 100644 --- a/fs/jffs2/readinode.c +++ b/fs/jffs2/readinode.c @@ -67,7 +67,7 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info NULL); if (!err && retlen < len) { JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize); - c->mtd->unpoint(c->mtd, ofs, retlen); + mtd_unpoint(c->mtd, ofs, retlen); } else if (err) JFFS2_WARNING("MTD point failed: error code %d.\n", err); else @@ -101,7 +101,7 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info kfree(buffer); #ifndef __ECOS else - c->mtd->unpoint(c->mtd, ofs, len); + mtd_unpoint(c->mtd, ofs, len); #endif if (crc != tn->data_crc) { @@ -137,7 +137,7 @@ free_out: kfree(buffer); #ifndef __ECOS else - c->mtd->unpoint(c->mtd, ofs, len); + mtd_unpoint(c->mtd, ofs, len); #endif return err; } diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c index 53e05c8e5b6..72f3960f44a 100644 --- a/fs/jffs2/scan.c +++ b/fs/jffs2/scan.c @@ -102,7 +102,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c) if (!ret && pointlen < c->mtd->size) { /* Don't muck about if it won't let us point to the whole flash */ D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", pointlen)); - c->mtd->unpoint(c->mtd, 0, pointlen); + mtd_unpoint(c->mtd, 0, pointlen); flashbuf = NULL; } if (ret) @@ -273,7 +273,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c) kfree(flashbuf); #ifndef __ECOS else - c->mtd->unpoint(c->mtd, 0, c->mtd->size); + mtd_unpoint(c->mtd, 0, c->mtd->size); #endif kfree(s); return ret; -- cgit v1.2.3 From 04c601bfa4cb29c968dcb66e44c799c9c01d8675 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 17:10:15 +0200 Subject: mtd: introduce mtd_get_unmapped_area interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/romfs/mmap-nommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/romfs/mmap-nommu.c b/fs/romfs/mmap-nommu.c index eed99428f10..d5168e8e7dc 100644 --- a/fs/romfs/mmap-nommu.c +++ b/fs/romfs/mmap-nommu.c @@ -53,7 +53,7 @@ static unsigned long romfs_get_unmapped_area(struct file *file, if (offset > mtd->size - len) return (unsigned long) -EINVAL; - return mtd->get_unmapped_area(mtd, len, offset, flags); + return mtd_get_unmapped_area(mtd, len, offset, flags); } cant_map_directly: -- cgit v1.2.3 From 329ad399a9b3adf52c90637b21ca029fcf7f8795 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 17:30:16 +0200 Subject: mtd: introduce mtd_read interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/erase.c | 2 +- fs/jffs2/wbuf.c | 9 +++++---- fs/logfs/dev_mtd.c | 2 +- 3 files changed, 7 insertions(+), 6 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index ffdf4fca9c5..c59d642cade 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -381,7 +381,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl *bad_offset = ofs; - ret = c->mtd->read(c->mtd, ofs, readlen, &retlen, ebuf); + ret = mtd_read(c->mtd, ofs, readlen, &retlen, ebuf); if (ret) { printk(KERN_WARNING "Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", ofs, ret); ret = -EIO; diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index b09e51d2f81..a24d3d21b63 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -228,7 +228,7 @@ static int jffs2_verify_write(struct jffs2_sb_info *c, unsigned char *buf, size_t retlen; char *eccstr; - ret = c->mtd->read(c->mtd, ofs, c->wbuf_pagesize, &retlen, c->wbuf_verify); + ret = mtd_read(c->mtd, ofs, c->wbuf_pagesize, &retlen, c->wbuf_verify); if (ret && ret != -EUCLEAN && ret != -EBADMSG) { printk(KERN_WARNING "jffs2_verify_write(): Read back of page at %08x failed: %d\n", c->wbuf_ofs, ret); return ret; @@ -337,7 +337,8 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c) } /* Do the read... */ - ret = c->mtd->read(c->mtd, start, c->wbuf_ofs - start, &retlen, buf); + ret = mtd_read(c->mtd, start, c->wbuf_ofs - start, &retlen, + buf); /* ECC recovered ? */ if ((ret == -EUCLEAN || ret == -EBADMSG) && @@ -948,11 +949,11 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re int ret; if (!jffs2_is_writebuffered(c)) - return c->mtd->read(c->mtd, ofs, len, retlen, buf); + return mtd_read(c->mtd, ofs, len, retlen, buf); /* Read flash */ down_read(&c->wbuf_sem); - ret = c->mtd->read(c->mtd, ofs, len, retlen, buf); + ret = mtd_read(c->mtd, ofs, len, retlen, buf); if ( (ret == -EBADMSG || ret == -EUCLEAN) && (*retlen == len) ) { if (ret == -EBADMSG) diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index 04636289435..3ee64351685 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -20,7 +20,7 @@ static int logfs_mtd_read(struct super_block *sb, loff_t ofs, size_t len, size_t retlen; int ret; - ret = mtd->read(mtd, ofs, len, &retlen, buf); + ret = mtd_read(mtd, ofs, len, &retlen, buf); BUG_ON(ret == -EINVAL); if (ret) return ret; -- cgit v1.2.3 From eda95cbf75193808f62948fb0142ba0901d8bee2 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 17:35:41 +0200 Subject: mtd: introduce mtd_write interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/wbuf.c | 18 +++++++++--------- fs/jffs2/writev.c | 5 +++-- fs/logfs/dev_mtd.c | 2 +- 3 files changed, 13 insertions(+), 12 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index a24d3d21b63..3ea2f8db935 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -414,13 +414,12 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c) if (breakme++ == 20) { printk(KERN_NOTICE "Faking write error at 0x%08x\n", ofs); breakme = 0; - c->mtd->write(c->mtd, ofs, towrite, &retlen, - brokenbuf); + mtd_write(c->mtd, ofs, towrite, &retlen, brokenbuf); ret = -EIO; } else #endif - ret = c->mtd->write(c->mtd, ofs, towrite, &retlen, - rewrite_buf); + ret = mtd_write(c->mtd, ofs, towrite, &retlen, + rewrite_buf); if (ret || retlen != towrite || jffs2_verify_write(c, rewrite_buf, ofs)) { /* Argh. We tried. Really we did. */ @@ -620,13 +619,14 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad) if (breakme++ == 20) { printk(KERN_NOTICE "Faking write error at 0x%08x\n", c->wbuf_ofs); breakme = 0; - c->mtd->write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, - brokenbuf); + mtd_write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, + brokenbuf); ret = -EIO; } else #endif - ret = c->mtd->write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, c->wbuf); + ret = mtd_write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, + &retlen, c->wbuf); if (ret) { printk(KERN_WARNING "jffs2_flush_wbuf(): Write failed with %d\n", ret); @@ -862,8 +862,8 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, v += wbuf_retlen; if (vlen >= c->wbuf_pagesize) { - ret = c->mtd->write(c->mtd, outvec_to, PAGE_DIV(vlen), - &wbuf_retlen, v); + ret = mtd_write(c->mtd, outvec_to, PAGE_DIV(vlen), + &wbuf_retlen, v); if (ret < 0 || wbuf_retlen != PAGE_DIV(vlen)) goto outfile; diff --git a/fs/jffs2/writev.c b/fs/jffs2/writev.c index b9276b11bac..b05710fd552 100644 --- a/fs/jffs2/writev.c +++ b/fs/jffs2/writev.c @@ -26,7 +26,8 @@ static inline int mtd_fake_writev(struct mtd_info *mtd, const struct kvec *vecs, for (i=0; iwrite(mtd, to, vecs[i].iov_len, &thislen, vecs[i].iov_base); + ret = mtd_write(mtd, to, vecs[i].iov_len, &thislen, + vecs[i].iov_base); totlen += thislen; if (ret || thislen != vecs[i].iov_len) break; @@ -61,7 +62,7 @@ int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *retlen, const u_char *buf) { int ret; - ret = c->mtd->write(c->mtd, ofs, len, retlen, buf); + ret = mtd_write(c->mtd, ofs, len, retlen, buf); if (jffs2_sum_active()) { struct kvec vecs[1]; diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index 3ee64351685..1842440d656 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -49,7 +49,7 @@ static int loffs_mtd_write(struct super_block *sb, loff_t ofs, size_t len, BUG_ON(len > PAGE_CACHE_SIZE); page_start = ofs & PAGE_CACHE_MASK; page_end = PAGE_CACHE_ALIGN(ofs + len) - 1; - ret = mtd->write(mtd, ofs, len, &retlen, buf); + ret = mtd_write(mtd, ofs, len, &retlen, buf); if (ret || (retlen != len)) return -EIO; -- cgit v1.2.3 From fd2819bbc92fc98bed5d612e4acbe16b6326f6bf Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 18:27:05 +0200 Subject: mtd: introduce mtd_read_oob interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/wbuf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index 3ea2f8db935..efc0cb37030 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1032,7 +1032,7 @@ int jffs2_check_oob_empty(struct jffs2_sb_info *c, ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0; ops.datbuf = NULL; - ret = c->mtd->read_oob(c->mtd, jeb->offset, &ops); + ret = mtd_read_oob(c->mtd, jeb->offset, &ops); if (ret || ops.oobretlen != ops.ooblen) { printk(KERN_ERR "cannot read OOB for EB at %08x, requested %zd" " bytes, read %zd bytes, error %d\n", @@ -1075,7 +1075,7 @@ int jffs2_check_nand_cleanmarker(struct jffs2_sb_info *c, ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0; ops.datbuf = NULL; - ret = c->mtd->read_oob(c->mtd, jeb->offset, &ops); + ret = mtd_read_oob(c->mtd, jeb->offset, &ops); if (ret || ops.oobretlen != ops.ooblen) { printk(KERN_ERR "cannot read OOB for EB at %08x, requested %zd" " bytes, read %zd bytes, error %d\n", -- cgit v1.2.3 From a2cc5ba075f9bc837d0b4d4ec7328dcefc11859d Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 18:29:55 +0200 Subject: mtd: introduce mtd_write_oob interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/wbuf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index efc0cb37030..eae5be48368 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1101,7 +1101,7 @@ int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c, ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0; ops.datbuf = NULL; - ret = c->mtd->write_oob(c->mtd, jeb->offset, &ops); + ret = mtd_write_oob(c->mtd, jeb->offset, &ops); if (ret || ops.oobretlen != ops.ooblen) { printk(KERN_ERR "cannot write OOB for EB at %08x, requested %zd" " bytes, read %zd bytes, error %d\n", -- cgit v1.2.3 From b0a31f7b2a668f00a8d0546dfeed65fac871b2da Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 18:59:12 +0200 Subject: mtd: introduce mtd_writev interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/writev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/jffs2/writev.c b/fs/jffs2/writev.c index b05710fd552..d0ef068709a 100644 --- a/fs/jffs2/writev.c +++ b/fs/jffs2/writev.c @@ -52,7 +52,7 @@ int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs, } if (c->mtd->writev) - return c->mtd->writev(c->mtd, vecs, count, to, retlen); + return mtd_writev(c->mtd, vecs, count, to, retlen); else { return mtd_fake_writev(c->mtd, vecs, count, to, retlen); } -- cgit v1.2.3 From 85f2f2a809d658c15b574df02ede92090f45a1f2 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 19:03:12 +0200 Subject: mtd: introduce mtd_sync interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/super.c | 2 +- fs/logfs/dev_mtd.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c index e7e97445411..e78bf3cd1b7 100644 --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -337,7 +337,7 @@ static void jffs2_put_super (struct super_block *sb) kfree(c->inocache_list); jffs2_clear_xattr_subsystem(c); if (c->mtd->sync) - c->mtd->sync(c->mtd); + mtd_sync(c->mtd); D1(printk(KERN_DEBUG "jffs2_put_super returning\n")); } diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index 1842440d656..0ca7a07db6c 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -120,7 +120,7 @@ static void logfs_mtd_sync(struct super_block *sb) struct mtd_info *mtd = logfs_super(sb)->s_mtd; if (mtd->sync) - mtd->sync(mtd); + mtd_sync(mtd); } static int logfs_mtd_readpage(void *_sb, struct page *page) -- cgit v1.2.3 From 7086c19d07429d697057587caf1e5e0345442d16 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 19:35:30 +0200 Subject: mtd: introduce mtd_block_isbad interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/scan.c | 2 +- fs/logfs/dev_mtd.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c index 72f3960f44a..83e1665e257 100644 --- a/fs/jffs2/scan.c +++ b/fs/jffs2/scan.c @@ -455,7 +455,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo if (jffs2_cleanmarker_oob(c)) { int ret; - if (c->mtd->block_isbad(c->mtd, jeb->offset)) + if (mtd_block_isbad(c->mtd, jeb->offset)) return BLK_STATE_BADBLOCK; ret = jffs2_check_nand_cleanmarker(c, jeb); diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index 0ca7a07db6c..136c7360a9b 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -157,7 +157,7 @@ static struct page *logfs_mtd_find_first_sb(struct super_block *sb, u64 *ofs) return NULL; *ofs = 0; - while (mtd->block_isbad(mtd, *ofs)) { + while (mtd_block_isbad(mtd, *ofs)) { *ofs += mtd->erasesize; if (*ofs >= mtd->size) return NULL; @@ -177,7 +177,7 @@ static struct page *logfs_mtd_find_last_sb(struct super_block *sb, u64 *ofs) return NULL; *ofs = mtd->size - mtd->erasesize; - while (mtd->block_isbad(mtd, *ofs)) { + while (mtd_block_isbad(mtd, *ofs)) { *ofs -= mtd->erasesize; if (*ofs <= 0) return NULL; -- cgit v1.2.3 From 5942ddbc500d1c9b75e571b656be97f65b26adfe Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 23 Dec 2011 19:37:38 +0200 Subject: mtd: introduce mtd_block_markbad interface Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/wbuf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs') diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index eae5be48368..fd96b757433 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1134,7 +1134,7 @@ int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock * return 1; // What else can we do? printk(KERN_WARNING "JFFS2: marking eraseblock at %08x\n as bad", bad_offset); - ret = c->mtd->block_markbad(c->mtd, bad_offset); + ret = mtd_block_markbad(c->mtd, bad_offset); if (ret) { D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Write failed for block at %08x: error %d\n", jeb->offset, ret)); -- cgit v1.2.3 From 4ccf2f1349e681401b5fae73efc87b8d2d70ce0e Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 30 Dec 2011 15:48:55 +0200 Subject: jffs: remove custom mtd_fake_writev function Instead, use 'default_mtd_writev()' function which MTD provides. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/writev.c | 27 +-------------------------- 1 file changed, 1 insertion(+), 26 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/writev.c b/fs/jffs2/writev.c index d0ef068709a..8d704073f8b 100644 --- a/fs/jffs2/writev.c +++ b/fs/jffs2/writev.c @@ -13,31 +13,6 @@ #include #include "nodelist.h" -/* This ought to be in core MTD code. All registered MTD devices - without writev should have this put in place. Bug the MTD - maintainer */ -static inline int mtd_fake_writev(struct mtd_info *mtd, const struct kvec *vecs, - unsigned long count, loff_t to, size_t *retlen) -{ - unsigned long i; - size_t totlen = 0, thislen; - int ret = 0; - - for (i=0; imtd->writev) return mtd_writev(c->mtd, vecs, count, to, retlen); else { - return mtd_fake_writev(c->mtd, vecs, count, to, retlen); + return default_mtd_writev(c->mtd, vecs, count, to, retlen); } } -- cgit v1.2.3 From 10934478e44d9a5a7b16dadd89094fb608cf101e Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Wed, 28 Dec 2011 15:55:42 +0200 Subject: mtd: do use mtd->point directly Remove direct usage of the "mtd->point" function pointer. Instead, test the mtd_point() return code for '-EOPNOTSUPP'. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/erase.c | 9 ++++----- fs/jffs2/readinode.c | 18 ++++++++---------- fs/jffs2/scan.c | 2 +- 3 files changed, 13 insertions(+), 16 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c index c59d642cade..a01cdad6aad 100644 --- a/fs/jffs2/erase.c +++ b/fs/jffs2/erase.c @@ -336,12 +336,11 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl uint32_t ofs; size_t retlen; int ret = -EIO; + unsigned long *wordebuf; - if (c->mtd->point) { - unsigned long *wordebuf; - - ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen, - &ebuf, NULL); + ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen, + &ebuf, NULL); + if (ret != -EOPNOTSUPP) { if (ret) { D1(printk(KERN_DEBUG "MTD point failed %d\n", ret)); goto do_flash_read; diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c index fca2f84e1ad..3093ac4fb24 100644 --- a/fs/jffs2/readinode.c +++ b/fs/jffs2/readinode.c @@ -62,17 +62,15 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info #ifndef __ECOS /* TODO: instead, incapsulate point() stuff to jffs2_flash_read(), * adding and jffs2_flash_read_end() interface. */ - if (c->mtd->point) { - err = mtd_point(c->mtd, ofs, len, &retlen, (void **)&buffer, - NULL); - if (!err && retlen < len) { - JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize); - mtd_unpoint(c->mtd, ofs, retlen); - } else if (err) + err = mtd_point(c->mtd, ofs, len, &retlen, (void **)&buffer, NULL); + if (!err && retlen < len) { + JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize); + mtd_unpoint(c->mtd, ofs, retlen); + } else if (err) { + if (err != -EOPNOTSUPP) JFFS2_WARNING("MTD point failed: error code %d.\n", err); - else - pointed = 1; /* succefully pointed to device */ - } + } else + pointed = 1; /* succefully pointed to device */ #endif if (!pointed) { diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c index 83e1665e257..f99464833bb 100644 --- a/fs/jffs2/scan.c +++ b/fs/jffs2/scan.c @@ -105,7 +105,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c) mtd_unpoint(c->mtd, 0, pointlen); flashbuf = NULL; } - if (ret) + if (ret && ret != -EOPNOTSUPP) D1(printk(KERN_DEBUG "MTD point failed %d\n", ret)); } #endif -- cgit v1.2.3 From 4991e7251ed951a5f33faf25912e9db416306309 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Wed, 28 Dec 2011 17:08:03 +0200 Subject: romfs: do not use mtd->get_unmapped_area directly Remove direct usage of mtd->get_unmapped_area. Instead, just call 'mtd_get_unmapped_area()' which will return -EOPNOTSUPP if the function is not implemented, and then test for this code. We also translate -EOPNOTSUPP to -ENOSYS because this return code is probably part of the kernel ABI which we do not want to break. Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/romfs/mmap-nommu.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) (limited to 'fs') diff --git a/fs/romfs/mmap-nommu.c b/fs/romfs/mmap-nommu.c index d5168e8e7dc..e1a7779dd3c 100644 --- a/fs/romfs/mmap-nommu.c +++ b/fs/romfs/mmap-nommu.c @@ -28,9 +28,10 @@ static unsigned long romfs_get_unmapped_area(struct file *file, struct inode *inode = file->f_mapping->host; struct mtd_info *mtd = inode->i_sb->s_mtd; unsigned long isize, offset, maxpages, lpages; + int ret; if (!mtd) - goto cant_map_directly; + return (unsigned long) -ENOSYS; /* the mapping mustn't extend beyond the EOF */ lpages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; @@ -41,23 +42,20 @@ static unsigned long romfs_get_unmapped_area(struct file *file, if ((pgoff >= maxpages) || (maxpages - pgoff < lpages)) return (unsigned long) -EINVAL; - /* we need to call down to the MTD layer to do the actual mapping */ - if (mtd->get_unmapped_area) { - if (addr != 0) - return (unsigned long) -EINVAL; - - if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT)) - return (unsigned long) -EINVAL; + if (addr != 0) + return (unsigned long) -EINVAL; - offset += ROMFS_I(inode)->i_dataoffset; - if (offset > mtd->size - len) - return (unsigned long) -EINVAL; + if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT)) + return (unsigned long) -EINVAL; - return mtd_get_unmapped_area(mtd, len, offset, flags); - } + offset += ROMFS_I(inode)->i_dataoffset; + if (offset > mtd->size - len) + return (unsigned long) -EINVAL; -cant_map_directly: - return (unsigned long) -ENOSYS; + ret = mtd_get_unmapped_area(mtd, len, offset, flags); + if (ret == -EOPNOTSUPP) + ret = -ENOSYS; + return (unsigned long) ret; } /* -- cgit v1.2.3 From 1dbebd32562b3c2caeca35960e5cb00bfcc12900 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 30 Dec 2011 16:23:41 +0200 Subject: mtd: harmonize mtd_writev usage This patch makes the 'mtd_writev()' function more usable and logical. We first teach it to fall-back to the 'default_mtd_writev()' function if the MTD driver does not define its own '->writev()' method. Then we make block2mtd and JFFS2 just 'mtd_writev()' instead of 'default_mtd_writev()' function. This means we can now stop exporting 'default_mtd_writev()' and instead, export 'mtd_writev()'. This is much cleaner and more logical, as well as allows us to get read of another direct 'mtd->writev' access in JFFS2. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/writev.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/writev.c b/fs/jffs2/writev.c index 8d704073f8b..a1bda9dab3f 100644 --- a/fs/jffs2/writev.c +++ b/fs/jffs2/writev.c @@ -26,11 +26,7 @@ int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs, } } - if (c->mtd->writev) - return mtd_writev(c->mtd, vecs, count, to, retlen); - else { - return default_mtd_writev(c->mtd, vecs, count, to, retlen); - } + return mtd_writev(c->mtd, vecs, count, to, retlen); } int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len, -- cgit v1.2.3 From 327cf2922b4edf0439b219469722d2a502e37349 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Fri, 30 Dec 2011 16:35:35 +0200 Subject: mtd: do not use mtd->sync directly This patch teaches 'mtd_sync()' to do nothing when the MTD driver does not have the '->sync()' method, which allows us to remove all direct 'mtd->sync' accesses. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/super.c | 4 +--- fs/logfs/dev_mtd.c | 3 +-- 2 files changed, 2 insertions(+), 5 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c index e78bf3cd1b7..5863a369d92 100644 --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -336,9 +336,7 @@ static void jffs2_put_super (struct super_block *sb) jffs2_flash_cleanup(c); kfree(c->inocache_list); jffs2_clear_xattr_subsystem(c); - if (c->mtd->sync) - mtd_sync(c->mtd); - + mtd_sync(c->mtd); D1(printk(KERN_DEBUG "jffs2_put_super returning\n")); } diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index 136c7360a9b..3f465882ee7 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -119,8 +119,7 @@ static void logfs_mtd_sync(struct super_block *sb) { struct mtd_info *mtd = logfs_super(sb)->s_mtd; - if (mtd->sync) - mtd_sync(mtd); + mtd_sync(mtd); } static int logfs_mtd_readpage(void *_sb, struct page *page) -- cgit v1.2.3 From d58b27ed58a30faf376e40d19945f34301944b8d Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Mon, 2 Jan 2012 13:52:14 +0200 Subject: logfs: do not use 'mtd->block_isbad' directly MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead, use the new 'mtd_can_have_bb()' helper. Cc: Jörn Engel Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/logfs/dev_mtd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs') diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c index 3f465882ee7..e97404d611e 100644 --- a/fs/logfs/dev_mtd.c +++ b/fs/logfs/dev_mtd.c @@ -152,7 +152,7 @@ static struct page *logfs_mtd_find_first_sb(struct super_block *sb, u64 *ofs) filler_t *filler = logfs_mtd_readpage; struct mtd_info *mtd = super->s_mtd; - if (!mtd->block_isbad) + if (!mtd_can_have_bb(mtd)) return NULL; *ofs = 0; @@ -172,7 +172,7 @@ static struct page *logfs_mtd_find_last_sb(struct super_block *sb, u64 *ofs) filler_t *filler = logfs_mtd_readpage; struct mtd_info *mtd = super->s_mtd; - if (!mtd->block_isbad) + if (!mtd_can_have_bb(mtd)) return NULL; *ofs = mtd->size - mtd->erasesize; -- cgit v1.2.3 From 800ffd3496987e91f599a135060ef49731e045ac Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Mon, 2 Jan 2012 13:59:12 +0200 Subject: mtd: do not use mtd->block_markbad directly Instead, use the new 'mtd_can_have_bb()', or just rely on 'mtd_block_markbad()' return code, which will be -EOPNOTSUPP if bad blocks are not supported. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- fs/jffs2/wbuf.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'fs') diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index fd96b757433..30e8f47e8a2 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1130,9 +1130,6 @@ int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock * if( ++jeb->bad_count < MAX_ERASE_FAILURES) return 0; - if (!c->mtd->block_markbad) - return 1; // What else can we do? - printk(KERN_WARNING "JFFS2: marking eraseblock at %08x\n as bad", bad_offset); ret = mtd_block_markbad(c->mtd, bad_offset); -- cgit v1.2.3