aboutsummaryrefslogtreecommitdiffstats
path: root/fs/jfs/jfs_logmgr.h
diff options
context:
space:
mode:
authorDave Kleikamp <shaggy@austin.ibm.com>2006-10-02 09:55:27 -0500
committerDave Kleikamp <shaggy@austin.ibm.com>2006-10-02 09:55:27 -0500
commit63f83c9fcf40ab61b75edf5d2f2c1ae6bf876482 (patch)
tree405671dca4a5a2b109112306734223d9dd0dcfbb /fs/jfs/jfs_logmgr.h
parent087387f90f577f5a0ab68d33ef326c9bb6d80dda (diff)
JFS: White space cleanup
Removed trailing spaces & tabs, and spaces preceding tabs. Also a couple very minor comment cleanups. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> (cherry picked from f74156539964d7b3d5164fdf8848e6a682f75b97 commit)
Diffstat (limited to 'fs/jfs/jfs_logmgr.h')
-rw-r--r--fs/jfs/jfs_logmgr.h76
1 files changed, 37 insertions, 39 deletions
diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
index 8c6909b8001..a53fb17ea21 100644
--- a/fs/jfs/jfs_logmgr.h
+++ b/fs/jfs/jfs_logmgr.h
@@ -4,16 +4,16 @@
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_LOGMGR
@@ -35,19 +35,19 @@
/*
* log logical volume
*
- * a log is used to make the commit operation on journalled
+ * a log is used to make the commit operation on journalled
* files within the same logical volume group atomic.
* a log is implemented with a logical volume.
- * there is one log per logical volume group.
+ * there is one log per logical volume group.
*
* block 0 of the log logical volume is not used (ipl etc).
* block 1 contains a log "superblock" and is used by logFormat(),
- * lmLogInit(), lmLogShutdown(), and logRedo() to record status
- * of the log but is not otherwise used during normal processing.
+ * lmLogInit(), lmLogShutdown(), and logRedo() to record status
+ * of the log but is not otherwise used during normal processing.
* blocks 2 - (N-1) are used to contain log records.
*
- * when a volume group is varied-on-line, logRedo() must have
- * been executed before the file systems (logical volumes) in
+ * when a volume group is varied-on-line, logRedo() must have
+ * been executed before the file systems (logical volumes) in
* the volume group can be mounted.
*/
/*
@@ -97,26 +97,26 @@ struct logsuper {
* log logical page
*
* (this comment should be rewritten !)
- * the header and trailer structures (h,t) will normally have
+ * the header and trailer structures (h,t) will normally have
* the same page and eor value.
- * An exception to this occurs when a complete page write is not
+ * An exception to this occurs when a complete page write is not
* accomplished on a power failure. Since the hardware may "split write"
- * sectors in the page, any out of order sequence may occur during powerfail
+ * sectors in the page, any out of order sequence may occur during powerfail
* and needs to be recognized during log replay. The xor value is
* an "exclusive or" of all log words in the page up to eor. This
* 32 bit eor is stored with the top 16 bits in the header and the
* bottom 16 bits in the trailer. logredo can easily recognize pages
- * that were not completed by reconstructing this eor and checking
+ * that were not completed by reconstructing this eor and checking
* the log page.
*
- * Previous versions of the operating system did not allow split
- * writes and detected partially written records in logredo by
- * ordering the updates to the header, trailer, and the move of data
- * into the logdata area. The order: (1) data is moved (2) header
- * is updated (3) trailer is updated. In logredo, when the header
- * differed from the trailer, the header and trailer were reconciled
- * as follows: if h.page != t.page they were set to the smaller of
- * the two and h.eor and t.eor set to 8 (i.e. empty page). if (only)
+ * Previous versions of the operating system did not allow split
+ * writes and detected partially written records in logredo by
+ * ordering the updates to the header, trailer, and the move of data
+ * into the logdata area. The order: (1) data is moved (2) header
+ * is updated (3) trailer is updated. In logredo, when the header
+ * differed from the trailer, the header and trailer were reconciled
+ * as follows: if h.page != t.page they were set to the smaller of
+ * the two and h.eor and t.eor set to 8 (i.e. empty page). if (only)
* h.eor != t.eor they were set to the smaller of their two values.
*/
struct logpage {
@@ -147,20 +147,20 @@ struct logpage {
* in a page, pages are written to temporary paging space if
* if they must be written to disk before commit, and i/o is
* scheduled for modified pages to their home location after
- * the log records containing the after values and the commit
+ * the log records containing the after values and the commit
* record is written to the log on disk, undo discards the copy
* in main-memory.)
*
- * a log record consists of a data area of variable length followed by
+ * a log record consists of a data area of variable length followed by
* a descriptor of fixed size LOGRDSIZE bytes.
- * the data area is rounded up to an integral number of 4-bytes and
+ * the data area is rounded up to an integral number of 4-bytes and
* must be no longer than LOGPSIZE.
- * the descriptor is of size of multiple of 4-bytes and aligned on a
- * 4-byte boundary.
+ * the descriptor is of size of multiple of 4-bytes and aligned on a
+ * 4-byte boundary.
* records are packed one after the other in the data area of log pages.
- * (sometimes a DUMMY record is inserted so that at least one record ends
+ * (sometimes a DUMMY record is inserted so that at least one record ends
* on every page or the longest record is placed on at most two pages).
- * the field eor in page header/trailer points to the byte following
+ * the field eor in page header/trailer points to the byte following
* the last record on a page.
*/
@@ -270,11 +270,11 @@ struct lrd {
/*
* NOREDOINOEXT: the inode extent is freed
*
- * do not apply after-image records which precede this
- * record in the log with the any of the 4 page block
- * numbers in this inode extent.
- *
- * NOTE: The fileset and pxd fields MUST remain in
+ * do not apply after-image records which precede this
+ * record in the log with the any of the 4 page block
+ * numbers in this inode extent.
+ *
+ * NOTE: The fileset and pxd fields MUST remain in
* the same fields in the REDOPAGE record format.
*
*/
@@ -319,12 +319,10 @@ struct lrd {
* do not apply records which precede this record in the log
* with the same inode number.
*
- * NOREDILE must be the first to be written at commit
+ * NOREDOFILE must be the first to be written at commit
* (last to be read in logredo()) - it prevents
* replay of preceding updates of all preceding generations
- * of the inumber esp. the on-disk inode itself,
- * but does NOT prevent
- * replay of the
+ * of the inumber esp. the on-disk inode itself.
*/
struct {
__le32 fileset; /* 4: fileset number */
@@ -332,7 +330,7 @@ struct lrd {
} noredofile;
/*
- * ? NEWPAGE:
+ * ? NEWPAGE:
*
* metadata type dependent
*/
@@ -464,7 +462,7 @@ struct lbuf {
s64 l_blkno; /* 8: log page block number */
caddr_t l_ldata; /* 4: data page */
struct page *l_page; /* The page itself */
- uint l_offset; /* Offset of l_ldata within the page */
+ uint l_offset; /* Offset of l_ldata within the page */
wait_queue_head_t l_ioevent; /* 4: i/o done event */
};