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author | Christoph Hellwig <hch@infradead.org> | 2010-07-20 17:51:31 +1000 |
---|---|---|
committer | Alex Elder <aelder@sgi.com> | 2010-07-26 13:16:52 -0500 |
commit | 5d18898b20dfed5f373f8a9a7cbe01446036f8e9 (patch) | |
tree | dc96915d62c7140ad4ac33a3724ddf36f9db022f /fs/xfs/quota | |
parent | 939d723b721eef71060201738653a73443ff4510 (diff) | |
download | kernel_samsung_aries-5d18898b20dfed5f373f8a9a7cbe01446036f8e9.zip kernel_samsung_aries-5d18898b20dfed5f373f8a9a7cbe01446036f8e9.tar.gz kernel_samsung_aries-5d18898b20dfed5f373f8a9a7cbe01446036f8e9.tar.bz2 |
xfs: simplify xfs_truncate_file
xfs_truncate_file is only used for truncating quota files. Move it to
xfs_qm_syscalls.c so it can be marked static and take advatange of the
fact by removing the unused page cache validation and taking the iget
into the helper.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/quota')
-rw-r--r-- | fs/xfs/quota/xfs_qm_syscalls.c | 70 |
1 files changed, 52 insertions, 18 deletions
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index 73f2b20..d257eb8 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -238,40 +238,74 @@ out_unlock: return error; } +STATIC int +xfs_qm_scall_trunc_qfile( + struct xfs_mount *mp, + xfs_ino_t ino) +{ + struct xfs_inode *ip; + struct xfs_trans *tp; + int error; + + if (ino == NULLFSINO) + return 0; + + error = xfs_iget(mp, NULL, ino, 0, 0, &ip); + if (error) + return error; + + xfs_ilock(ip, XFS_IOLOCK_EXCL); + + tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE); + error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0, + XFS_TRANS_PERM_LOG_RES, + XFS_ITRUNCATE_LOG_COUNT); + if (error) { + xfs_trans_cancel(tp, 0); + xfs_iunlock(ip, XFS_IOLOCK_EXCL); + goto out_put; + } + + xfs_ilock(ip, XFS_ILOCK_EXCL); + xfs_trans_ijoin(tp, ip); + + error = xfs_itruncate_finish(&tp, ip, 0, XFS_DATA_FORK, 1); + if (error) { + xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | + XFS_TRANS_ABORT); + goto out_unlock; + } + + xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); + error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); + +out_unlock: + xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL); +out_put: + IRELE(ip); + return error; +} + int xfs_qm_scall_trunc_qfiles( xfs_mount_t *mp, uint flags) { int error = 0, error2 = 0; - xfs_inode_t *qip; if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) { qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags); return XFS_ERROR(EINVAL); } - if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) { - error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip); - if (!error) { - error = xfs_truncate_file(mp, qip); - IRELE(qip); - } - } - - if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) && - mp->m_sb.sb_gquotino != NULLFSINO) { - error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip); - if (!error2) { - error2 = xfs_truncate_file(mp, qip); - IRELE(qip); - } - } + if (flags & XFS_DQ_USER) + error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino); + if (flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) + error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino); return error ? error : error2; } - /* * Switch on (a given) quota enforcement for a filesystem. This takes * effect immediately. |