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| author | Namjae Jeon <namjae.jeon@samsung.com> | 2012-10-10 00:09:12 +0900 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2012-12-13 16:33:23 +0100 |
| commit | fb719c59bdb4fca86ee1fd1f42ab3735ca12b6b2 (patch) | |
| tree | 0228973d626851649787d383e959b97bba83b1d0 | |
| parent | 2fb7d99d0de3fd8ae869f35ab682581d8455887a (diff) | |
| download | op-kernel-dev-fb719c59bdb4fca86ee1fd1f42ab3735ca12b6b2.zip op-kernel-dev-fb719c59bdb4fca86ee1fd1f42ab3735ca12b6b2.tar.gz | |
udf: don't increment lenExtents while writing to a hole
Incrementing lenExtents even while writing to a hole is bad
for performance as calls to udf_discard_prealloc and
udf_truncate_tail_extent would not return from start if
isize != lenExtents
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/udf/inode.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 2b77593..8266f2e 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -601,6 +601,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block, struct udf_inode_info *iinfo = UDF_I(inode); int goal = 0, pgoal = iinfo->i_location.logicalBlockNum; int lastblock = 0; + bool isBeyondEOF; *err = 0; *new = 0; @@ -680,7 +681,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block, /* Are we beyond EOF? */ if (etype == -1) { int ret; - + isBeyondEOF = 1; if (count) { if (c) laarr[0] = laarr[1]; @@ -723,6 +724,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block, endnum = c + 1; lastblock = 1; } else { + isBeyondEOF = 0; endnum = startnum = ((count > 2) ? 2 : count); /* if the current extent is in position 0, @@ -770,7 +772,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block, *err = -ENOSPC; return 0; } - iinfo->i_lenExtents += inode->i_sb->s_blocksize; + if (isBeyondEOF) + iinfo->i_lenExtents += inode->i_sb->s_blocksize; } /* if the extent the requsted block is located in contains multiple |
