diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-10 20:16:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-10 20:16:43 -0700 |
commit | 101105b1717f536ca741f940033996302d4ef191 (patch) | |
tree | 12ab41ae1b1b66105e9fa2ea763356d2be7e8b34 /fs/inode.c | |
parent | 35ff96dfd3c9aaa921b3e8dcac76b7697f2dcec0 (diff) | |
parent | 3873691e5ab34fa26948643d038a2b98c4437298 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
">rename2() work from Miklos + current_time() from Deepa"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: Replace current_fs_time() with current_time()
fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps
fs: Replace CURRENT_TIME with current_time() for inode timestamps
fs: proc: Delete inode time initializations in proc_alloc_inode()
vfs: Add current_time() api
vfs: add note about i_op->rename changes to porting
fs: rename "rename2" i_op to "rename"
vfs: remove unused i_op->rename
fs: make remaining filesystems use .rename2
libfs: support RENAME_NOREPLACE in simple_rename()
fs: support RENAME_NOREPLACE for local filesystems
ncpfs: fix unused variable warning
Diffstat (limited to 'fs/inode.c')
-rw-r--r-- | fs/inode.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/fs/inode.c b/fs/inode.c index 7d037591259d..88110fd0b282 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1686,7 +1686,7 @@ bool __atime_needs_update(const struct path *path, struct inode *inode, if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)) return false; - now = current_fs_time(inode->i_sb); + now = current_time(inode); if (!relatime_need_update(path, inode, now, rcu)) return false; @@ -1720,7 +1720,7 @@ void touch_atime(const struct path *path) * We may also fail on filesystems that have the ability to make parts * of the fs read only, e.g. subvolumes in Btrfs. */ - now = current_fs_time(inode->i_sb); + now = current_time(inode); update_time(inode, &now, S_ATIME); __mnt_drop_write(mnt); skip_update: @@ -1843,7 +1843,7 @@ int file_update_time(struct file *file) if (IS_NOCMTIME(inode)) return 0; - now = current_fs_time(inode->i_sb); + now = current_time(inode); if (!timespec_equal(&inode->i_mtime, &now)) sync_it = S_MTIME; @@ -2099,3 +2099,26 @@ void inode_nohighmem(struct inode *inode) mapping_set_gfp_mask(inode->i_mapping, GFP_USER); } EXPORT_SYMBOL(inode_nohighmem); + +/** + * current_time - Return FS time + * @inode: inode. + * + * Return the current time truncated to the time granularity supported by + * the fs. + * + * Note that inode and inode->sb cannot be NULL. + * Otherwise, the function warns and returns time without truncation. + */ +struct timespec current_time(struct inode *inode) +{ + struct timespec now = current_kernel_time(); + + if (unlikely(!inode->i_sb)) { + WARN(1, "current_time() called with uninitialized super_block in the inode"); + return now; + } + + return timespec_trunc(now, inode->i_sb->s_time_gran); +} +EXPORT_SYMBOL(current_time); |