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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-03 12:28:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-03 12:28:30 -0700
commite31fb9e00543e5d3c5b686747d3c862bc09b59f3 (patch)
tree4300b111471a858b542d55d47d587fb8ef52513a /fs/ext3/fsync.c
parent824b005c86f91fe02eb2743a4526361f11786f70 (diff)
parent9181f8bf5abf4b9d59b12e878895375b84fe32ba (diff)
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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext3 removal, quota & udf fixes from Jan Kara: "The biggest change in the pull is the removal of ext3 filesystem driver (~28k lines removed). Ext4 driver is a full featured replacement these days and both RH and SUSE use it for several years without issues. Also there are some workarounds in VM & block layer mainly for ext3 which we could eventually get rid of. Other larger change is addition of proper error handling for dquot_initialize(). The rest is small fixes and cleanups" [ I wasn't convinced about the ext3 removal and worried about things falling through the cracks for legacy users, but ext4 maintainers piped up and were all unanimously in favor of removal, and maintaining all legacy ext3 support inside ext4. - Linus ] * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: Don't modify filesystem for read-only mounts quota: remove an unneeded condition ext4: memory leak on error in ext4_symlink() mm/Kconfig: NEED_BOUNCE_POOL: clean-up condition ext4: Improve ext4 Kconfig test block: Remove forced page bouncing under IO fs: Remove ext3 filesystem driver doc: Update doc about journalling layer jfs: Handle error from dquot_initialize() reiserfs: Handle error from dquot_initialize() ocfs2: Handle error from dquot_initialize() ext4: Handle error from dquot_initialize() ext2: Handle error from dquot_initalize() quota: Propagate error from ->acquire_dquot()
Diffstat (limited to 'fs/ext3/fsync.c')
-rw-r--r--fs/ext3/fsync.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c
deleted file mode 100644
index 1cb9c7e10c6f..000000000000
--- a/fs/ext3/fsync.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * linux/fs/ext3/fsync.c
- *
- * Copyright (C) 1993 Stephen Tweedie (sct@redhat.com)
- * from
- * Copyright (C) 1992 Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- * from
- * linux/fs/minix/truncate.c Copyright (C) 1991, 1992 Linus Torvalds
- *
- * ext3fs fsync primitive
- *
- * Big-endian to little-endian byte-swapping/bitmaps by
- * David S. Miller (davem@caip.rutgers.edu), 1995
- *
- * Removed unnecessary code duplication for little endian machines
- * and excessive __inline__s.
- * Andi Kleen, 1997
- *
- * Major simplications and cleanup - we only need to do the metadata, because
- * we can depend on generic_block_fdatasync() to sync the data blocks.
- */
-
-#include <linux/blkdev.h>
-#include <linux/writeback.h>
-#include "ext3.h"
-
-/*
- * akpm: A new design for ext3_sync_file().
- *
- * This is only called from sys_fsync(), sys_fdatasync() and sys_msync().
- * There cannot be a transaction open by this task.
- * Another task could have dirtied this inode. Its data can be in any
- * state in the journalling system.
- *
- * What we do is just kick off a commit and wait on it. This will snapshot the
- * inode to disk.
- */
-
-int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
-{
- struct inode *inode = file->f_mapping->host;
- struct ext3_inode_info *ei = EXT3_I(inode);
- journal_t *journal = EXT3_SB(inode->i_sb)->s_journal;
- int ret, needs_barrier = 0;
- tid_t commit_tid;
-
- trace_ext3_sync_file_enter(file, datasync);
-
- if (inode->i_sb->s_flags & MS_RDONLY) {
- /* Make sure that we read updated state */
- smp_rmb();
- if (EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS)
- return -EROFS;
- return 0;
- }
- ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- if (ret)
- goto out;
-
- J_ASSERT(ext3_journal_current_handle() == NULL);
-
- /*
- * data=writeback,ordered:
- * The caller's filemap_fdatawrite()/wait will sync the data.
- * Metadata is in the journal, we wait for a proper transaction
- * to commit here.
- *
- * data=journal:
- * filemap_fdatawrite won't do anything (the buffers are clean).
- * ext3_force_commit will write the file data into the journal and
- * will wait on that.
- * filemap_fdatawait() will encounter a ton of newly-dirtied pages
- * (they were dirtied by commit). But that's OK - the blocks are
- * safe in-journal, which is all fsync() needs to ensure.
- */
- if (ext3_should_journal_data(inode)) {
- ret = ext3_force_commit(inode->i_sb);
- goto out;
- }
-
- if (datasync)
- commit_tid = atomic_read(&ei->i_datasync_tid);
- else
- commit_tid = atomic_read(&ei->i_sync_tid);
-
- if (test_opt(inode->i_sb, BARRIER) &&
- !journal_trans_will_send_data_barrier(journal, commit_tid))
- needs_barrier = 1;
- log_start_commit(journal, commit_tid);
- ret = log_wait_commit(journal, commit_tid);
-
- /*
- * In case we didn't commit a transaction, we have to flush
- * disk caches manually so that data really is on persistent
- * storage
- */
- if (needs_barrier) {
- int err;
-
- err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
- if (!ret)
- ret = err;
- }
-out:
- trace_ext3_sync_file_exit(inode, ret);
- return ret;
-}