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fs/9p: Fix inode i_size update in file_write

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Only update inode i_size when we write towards end of file.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
This commit is contained in:
Aneesh Kumar K.V 2011-02-28 17:04:04 +05:30 committed by Eric Van Hensbergen
parent 6b365604ca
commit fa6ea16160
1 changed files with 6 additions and 2 deletions
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8
fs/9p/vfs_file.c
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@ -440,6 +440,7 @@ v9fs_file_write_internal(struct inode *inode, struct p9_fid *fid,
loff_t *offset, int invalidate)
{
int n;
loff_t i_size;
size_t total = 0;
struct p9_client *clnt;
loff_t origin = *offset;
@ -464,8 +465,11 @@ v9fs_file_write_internal(struct inode *inode, struct p9_fid *fid,
invalidate_inode_pages2_range(inode->i_mapping,
pg_start, pg_end);
*offset += total;
i_size_write(inode, i_size_read(inode) + total);
inode->i_blocks = (i_size_read(inode) + 512 - 1) >> 9;
i_size = i_size_read(inode);
if (*offset > i_size) {
inode_add_bytes(inode, *offset - i_size);
i_size_write(inode, *offset);
}
}
if (n < 0)
return n;