diff options
| -rw-r--r-- | fs/xfs/xfs_dfrag.c | 3 | ||||
| -rw-r--r-- | fs/xfs/xfs_fs_subr.c | 12 | ||||
| -rw-r--r-- | fs/xfs/xfs_vnodeops.c | 30 | ||||
| -rw-r--r-- | fs/xfs/xfs_vnodeops.h | 2 |
4 files changed, 26 insertions, 21 deletions
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c index b9b8646e62d..b2c63a28afa 100644 --- a/fs/xfs/xfs_dfrag.c +++ b/fs/xfs/xfs_dfrag.c @@ -315,8 +315,7 @@ xfs_swap_extents( * are safe. We don't really care if non-io related * fields change. */ - - xfs_tosspages(ip, 0, -1, FI_REMAPF); + truncate_pagecache_range(VFS_I(ip), 0, -1); tp = xfs_trans_alloc(mp, XFS_TRANS_SWAPEXT); if ((error = xfs_trans_reserve(tp, 0, diff --git a/fs/xfs/xfs_fs_subr.c b/fs/xfs/xfs_fs_subr.c index 652b875a9d4..d49de3d7045 100644 --- a/fs/xfs/xfs_fs_subr.c +++ b/fs/xfs/xfs_fs_subr.c @@ -25,18 +25,6 @@ * note: all filemap functions return negative error codes. These * need to be inverted before returning to the xfs core functions. */ -void -xfs_tosspages( - xfs_inode_t *ip, - xfs_off_t first, - xfs_off_t last, - int fiopt) -{ - /* can't toss partial tail pages, so mask them out */ - last &= ~(PAGE_SIZE - 1); - truncate_inode_pages_range(VFS_I(ip)->i_mapping, first, last - 1); -} - int xfs_flushinval_pages( xfs_inode_t *ip, diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index c2ddd7a4394..de3702a57e5 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -2118,7 +2118,7 @@ xfs_change_file_space( xfs_fsize_t fsize; int setprealloc; xfs_off_t startoffset; - xfs_off_t llen; + xfs_off_t end; xfs_trans_t *tp; struct iattr iattr; int prealloc_type; @@ -2139,12 +2139,30 @@ xfs_change_file_space( return XFS_ERROR(EINVAL); } - llen = bf->l_len > 0 ? bf->l_len - 1 : bf->l_len; + /* + * length of <= 0 for resv/unresv/zero is invalid. length for + * alloc/free is ignored completely and we have no idea what userspace + * might have set it to, so set it to zero to allow range + * checks to pass. + */ + switch (cmd) { + case XFS_IOC_ZERO_RANGE: + case XFS_IOC_RESVSP: + case XFS_IOC_RESVSP64: + case XFS_IOC_UNRESVSP: + case XFS_IOC_UNRESVSP64: + if (bf->l_len <= 0) + return XFS_ERROR(EINVAL); + break; + default: + bf->l_len = 0; + break; + } if (bf->l_start < 0 || bf->l_start > mp->m_super->s_maxbytes || - bf->l_start + llen < 0 || - bf->l_start + llen > mp->m_super->s_maxbytes) + bf->l_start + bf->l_len < 0 || + bf->l_start + bf->l_len >= mp->m_super->s_maxbytes) return XFS_ERROR(EINVAL); bf->l_whence = 0; @@ -2169,7 +2187,9 @@ xfs_change_file_space( switch (cmd) { case XFS_IOC_ZERO_RANGE: prealloc_type |= XFS_BMAPI_CONVERT; - xfs_tosspages(ip, startoffset, startoffset + bf->l_len, 0); + end = round_down(startoffset + bf->l_len, PAGE_SIZE) - 1; + if (startoffset > end) + truncate_pagecache_range(VFS_I(ip), startoffset, end); /* FALLTHRU */ case XFS_IOC_RESVSP: case XFS_IOC_RESVSP64: diff --git a/fs/xfs/xfs_vnodeops.h b/fs/xfs/xfs_vnodeops.h index 52fafc416a0..d48141d6bc3 100644 --- a/fs/xfs/xfs_vnodeops.h +++ b/fs/xfs/xfs_vnodeops.h @@ -48,8 +48,6 @@ int xfs_attr_set(struct xfs_inode *dp, const unsigned char *name, int xfs_attr_remove(struct xfs_inode *dp, const unsigned char *name, int flags); int xfs_attr_list(struct xfs_inode *dp, char *buffer, int bufsize, int flags, struct attrlist_cursor_kern *cursor); -void xfs_tosspages(struct xfs_inode *inode, xfs_off_t first, - xfs_off_t last, int fiopt); int xfs_flushinval_pages(struct xfs_inode *ip, xfs_off_t first, xfs_off_t last, int fiopt); int xfs_flush_pages(struct xfs_inode *ip, xfs_off_t first, |