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-rw-r--r--fs/dcache.c4
-rw-r--r--fs/exec.c7
-rw-r--r--fs/ext4/Kconfig3
-rw-r--r--fs/ext4/ext4_jbd2.h6
-rw-r--r--fs/ext4/fsync.c3
-rw-r--r--fs/ext4/inode.c11
-rw-r--r--fs/ext4/mballoc.c8
-rw-r--r--fs/ext4/mmp.c2
-rw-r--r--fs/ext4/resize.c2
-rw-r--r--fs/ext4/super.c14
-rw-r--r--fs/fscache/stats.c2
-rw-r--r--fs/jbd2/commit.c50
-rw-r--r--fs/jbd2/journal.c31
-rw-r--r--fs/lockd/clntlock.c3
-rw-r--r--fs/lockd/clntproc.c3
-rw-r--r--fs/namespace.c5
-rw-r--r--fs/nfs/nfs4proc.c12
-rw-r--r--fs/nfsd/nfs4proc.c8
-rw-r--r--fs/nfsd/nfs4state.c10
-rw-r--r--fs/nfsd/nfs4xdr.c19
-rw-r--r--fs/notify/inotify/inotify_user.c6
-rw-r--r--fs/sysfs/dir.c15
22 files changed, 140 insertions, 84 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index e8bc3420d63e..e689268046c3 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1230,8 +1230,10 @@ void shrink_dcache_parent(struct dentry * parent)
LIST_HEAD(dispose);
int found;
- while ((found = select_parent(parent, &dispose)) != 0)
+ while ((found = select_parent(parent, &dispose)) != 0) {
shrink_dentry_list(&dispose);
+ cond_resched();
+ }
}
EXPORT_SYMBOL(shrink_dcache_parent);
diff --git a/fs/exec.c b/fs/exec.c
index a96a4885bbbf..6d56ff2d5787 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -613,7 +613,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
* when the old and new regions overlap clear from new_end.
*/
free_pgd_range(&tlb, new_end, old_end, new_end,
- vma->vm_next ? vma->vm_next->vm_start : 0);
+ vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
} else {
/*
* otherwise, clean from old_start; this is done to not touch
@@ -622,7 +622,7 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
* for the others its just a little faster.
*/
free_pgd_range(&tlb, old_start, old_end, new_end,
- vma->vm_next ? vma->vm_next->vm_start : 0);
+ vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
}
tlb_finish_mmu(&tlb, new_end, old_end);
@@ -898,11 +898,13 @@ static int de_thread(struct task_struct *tsk)
sig->notify_count = -1; /* for exit_notify() */
for (;;) {
+ threadgroup_change_begin(tsk);
write_lock_irq(&tasklist_lock);
if (likely(leader->exit_state))
break;
__set_current_state(TASK_KILLABLE);
write_unlock_irq(&tasklist_lock);
+ threadgroup_change_end(tsk);
schedule();
if (unlikely(__fatal_signal_pending(tsk)))
goto killed;
@@ -960,6 +962,7 @@ static int de_thread(struct task_struct *tsk)
if (unlikely(leader->ptrace))
__wake_up_parent(leader, leader->parent);
write_unlock_irq(&tasklist_lock);
+ threadgroup_change_end(tsk);
release_task(leader);
}
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index 987358740cb9..efea5d5c44ce 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -71,4 +71,5 @@ config EXT4_DEBUG
Enables run-time debugging support for the ext4 filesystem.
If you select Y here, then you will be able to turn on debugging
- with a command such as "echo 1 > /sys/kernel/debug/ext4/mballoc-debug"
+ with a command such as:
+ echo 1 > /sys/module/ext4/parameters/mballoc_debug
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index 4c216b1bf20c..aeed0bac693b 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -194,16 +194,20 @@ static inline void ext4_journal_callback_add(handle_t *handle,
* ext4_journal_callback_del: delete a registered callback
* @handle: active journal transaction handle on which callback was registered
* @jce: registered journal callback entry to unregister
+ * Return true if object was sucessfully removed
*/
-static inline void ext4_journal_callback_del(handle_t *handle,
+static inline bool ext4_journal_callback_try_del(handle_t *handle,
struct ext4_journal_cb_entry *jce)
{
+ bool deleted;
struct ext4_sb_info *sbi =
EXT4_SB(handle->h_transaction->t_journal->j_private);
spin_lock(&sbi->s_md_lock);
+ deleted = !list_empty(&jce->jce_list);
list_del_init(&jce->jce_list);
spin_unlock(&sbi->s_md_lock);
+ return deleted;
}
int
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index 3278e64e57b6..e0ba8a408def 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -166,8 +166,7 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
if (journal->j_flags & JBD2_BARRIER &&
!jbd2_trans_will_send_data_barrier(journal, commit_tid))
needs_barrier = true;
- jbd2_log_start_commit(journal, commit_tid);
- ret = jbd2_log_wait_commit(journal, commit_tid);
+ ret = jbd2_complete_transaction(journal, commit_tid);
if (needs_barrier) {
err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
if (!ret)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index b3a5213bc73e..d69e9540cd21 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -55,21 +55,21 @@ static __u32 ext4_inode_csum(struct inode *inode, struct ext4_inode *raw,
__u16 csum_hi = 0;
__u32 csum;
- csum_lo = raw->i_checksum_lo;
+ csum_lo = le16_to_cpu(raw->i_checksum_lo);
raw->i_checksum_lo = 0;
if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi)) {
- csum_hi = raw->i_checksum_hi;
+ csum_hi = le16_to_cpu(raw->i_checksum_hi);
raw->i_checksum_hi = 0;
}
csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)raw,
EXT4_INODE_SIZE(inode->i_sb));
- raw->i_checksum_lo = csum_lo;
+ raw->i_checksum_lo = cpu_to_le16(csum_lo);
if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE &&
EXT4_FITS_IN_INODE(raw, ei, i_checksum_hi))
- raw->i_checksum_hi = csum_hi;
+ raw->i_checksum_hi = cpu_to_le16(csum_hi);
return csum;
}
@@ -210,8 +210,7 @@ void ext4_evict_inode(struct inode *inode)
journal_t *journal = EXT4_SB(inode->i_sb)->s_journal;
tid_t commit_tid = EXT4_I(inode)->i_datasync_tid;
- jbd2_log_start_commit(journal, commit_tid);
- jbd2_log_wait_commit(journal, commit_tid);
+ jbd2_complete_transaction(journal, commit_tid);
filemap_write_and_wait(&inode->i_data);
}
truncate_inode_pages(&inode->i_data, 0);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index ee6614bdb639..cf3025c7b584 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4420,11 +4420,11 @@ ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b,
node = rb_prev(new_node);
if (node) {
entry = rb_entry(node, struct ext4_free_data, efd_node);
- if (can_merge(entry, new_entry)) {
+ if (can_merge(entry, new_entry) &&
+ ext4_journal_callback_try_del(handle, &entry->efd_jce)) {
new_entry->efd_start_cluster = entry->efd_start_cluster;
new_entry->efd_count += entry->efd_count;
rb_erase(node, &(db->bb_free_root));
- ext4_journal_callback_del(handle, &entry->efd_jce);
kmem_cache_free(ext4_free_data_cachep, entry);
}
}
@@ -4432,10 +4432,10 @@ ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b,
node = rb_next(new_node);
if (node) {
entry = rb_entry(node, struct ext4_free_data, efd_node);
- if (can_merge(new_entry, entry)) {
+ if (can_merge(new_entry, entry) &&
+ ext4_journal_callback_try_del(handle, &entry->efd_jce)) {
new_entry->efd_count += entry->efd_count;
rb_erase(node, &(db->bb_free_root));
- ext4_journal_callback_del(handle, &entry->efd_jce);
kmem_cache_free(ext4_free_data_cachep, entry);
}
}
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index f9b551561d2c..b3b1f7d99448 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -7,7 +7,7 @@
#include "ext4.h"
/* Checksumming functions */
-static __u32 ext4_mmp_csum(struct super_block *sb, struct mmp_struct *mmp)
+static __le32 ext4_mmp_csum(struct super_block *sb, struct mmp_struct *mmp)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
int offset = offsetof(struct mmp_struct, mmp_checksum);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index c169477a62c9..1357260f6332 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1341,6 +1341,8 @@ static void ext4_update_super(struct super_block *sb,
/* Update the global fs size fields */
sbi->s_groups_count += flex_gd->count;
+ sbi->s_blockfile_groups = min_t(ext4_group_t, sbi->s_groups_count,
+ (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
/* Update the reserved block counts only once the new group is
* active. */
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 5d6d53578124..febbe0e18024 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -353,10 +353,13 @@ static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn)
struct super_block *sb = journal->j_private;
struct ext4_sb_info *sbi = EXT4_SB(sb);
int error = is_journal_aborted(journal);
- struct ext4_journal_cb_entry *jce, *tmp;
+ struct ext4_journal_cb_entry *jce;
+ BUG_ON(txn->t_state == T_FINISHED);
spin_lock(&sbi->s_md_lock);
- list_for_each_entry_safe(jce, tmp, &txn->t_private_list, jce_list) {
+ while (!list_empty(&txn->t_private_list)) {
+ jce = list_entry(txn->t_private_list.next,
+ struct ext4_journal_cb_entry, jce_list);
list_del_init(&jce->jce_list);
spin_unlock(&sbi->s_md_lock);
jce->jce_func(sb, jce, error);
@@ -3698,6 +3701,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_err_report.function = print_daily_error_info;
sbi->s_err_report.data = (unsigned long) sb;
+ /* Register extent status tree shrinker */
+ ext4_es_register_shrinker(sb);
+
err = percpu_counter_init(&sbi->s_freeclusters_counter,
ext4_count_free_clusters(sb));
if (!err) {
@@ -3723,9 +3729,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_max_writeback_mb_bump = 128;
sbi->s_extent_max_zeroout_kb = 32;
- /* Register extent status tree shrinker */
- ext4_es_register_shrinker(sb);
-
/*
* set up enough so that it can read an inode
*/
@@ -4010,6 +4013,7 @@ failed_mount_wq:
sbi->s_journal = NULL;
}
failed_mount3:
+ ext4_es_unregister_shrinker(sb);
del_timer(&sbi->s_err_report);
if (sbi->s_flex_groups)
ext4_kvfree(sbi->s_flex_groups);
diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c
index 8179e8bc4a3d..40d13c70ef51 100644
--- a/fs/fscache/stats.c
+++ b/fs/fscache/stats.c
@@ -287,5 +287,5 @@ const struct file_operations fscache_stats_fops = {
.open = fscache_stats_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = single_release,
};
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 750c70148eff..0f53946f13c1 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -382,7 +382,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
int space_left = 0;
int first_tag = 0;
int tag_flag;
- int i, to_free = 0;
+ int i;
int tag_bytes = journal_tag_bytes(journal);
struct buffer_head *cbh = NULL; /* For transactional checksums */
__u32 crc32_sum = ~0;
@@ -1134,7 +1134,7 @@ restart_loop:
journal->j_stats.run.rs_blocks_logged += stats.run.rs_blocks_logged;
spin_unlock(&journal->j_history_lock);
- commit_transaction->t_state = T_FINISHED;
+ commit_transaction->t_state = T_COMMIT_CALLBACK;
J_ASSERT(commit_transaction == journal->j_committing_transaction);
journal->j_commit_sequence = commit_transaction->t_tid;
journal->j_committing_transaction = NULL;
@@ -1149,38 +1149,44 @@ restart_loop:
journal->j_average_commit_time*3) / 4;
else
journal->j_average_commit_time = commit_time;
+
write_unlock(&journal->j_state_lock);
- if (commit_transaction->t_checkpoint_list == NULL &&
- commit_transaction->t_checkpoint_io_list == NULL) {
- __jbd2_journal_drop_transaction(journal, commit_transaction);
- to_free = 1;
+ if (journal->j_checkpoint_transactions == NULL) {
+ journal->j_checkpoint_transactions = commit_transaction;
+ commit_transaction->t_cpnext = commit_transaction;
+ commit_transaction->t_cpprev = commit_transaction;
} else {
- if (journal->j_checkpoint_transactions == NULL) {
- journal->j_checkpoint_transactions = commit_transaction;
- commit_transaction->t_cpnext = commit_transaction;
- commit_transaction->t_cpprev = commit_transaction;
- } else {
- commit_transaction->t_cpnext =
- journal->j_checkpoint_transactions;
- commit_transaction->t_cpprev =
- commit_transaction->t_cpnext->t_cpprev;
- commit_transaction->t_cpnext->t_cpprev =
- commit_transaction;
- commit_transaction->t_cpprev->t_cpnext =
+ commit_transaction->t_cpnext =
+ journal->j_checkpoint_transactions;
+ commit_transaction->t_cpprev =
+ commit_transaction->t_cpnext->t_cpprev;
+ commit_transaction->t_cpnext->t_cpprev =
+ commit_transaction;
+ commit_transaction->t_cpprev->t_cpnext =
commit_transaction;
- }
}
spin_unlock(&journal->j_list_lock);
-
+ /* Drop all spin_locks because commit_callback may be block.
+ * __journal_remove_checkpoint() can not destroy transaction
+ * under us because it is not marked as T_FINISHED yet */
if (journal->j_commit_callback)
journal->j_commit_callback(journal, commit_transaction);
trace_jbd2_end_commit(journal, commit_transaction);
jbd_debug(1, "JBD2: commit %d complete, head %d\n",
journal->j_commit_sequence, journal->j_tail_sequence);
- if (to_free)
- jbd2_journal_free_transaction(commit_transaction);
+ write_lock(&journal->j_state_lock);
+ spin_lock(&journal->j_list_lock);
+ commit_transaction->t_state = T_FINISHED;
+ /* Recheck checkpoint lists after j_list_lock was dropped */
+ if (commit_transaction->t_checkpoint_list == NULL &&
+ commit_transaction->t_checkpoint_io_list == NULL) {
+ __jbd2_journal_drop_transaction(journal, commit_transaction);
+ jbd2_journal_free_transaction(commit_transaction);
+ }
+ spin_unlock(&journal->j_list_lock);
+ write_unlock(&journal->j_state_lock);
wake_up(&journal->j_wait_done_commit);
}
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index ed10991ab006..886ec2faa9b4 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -710,6 +710,37 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
}
/*
+ * When this function returns the transaction corresponding to tid
+ * will be completed. If the transaction has currently running, start
+ * committing that transaction before waiting for it to complete. If
+ * the transaction id is stale, it is by definition already completed,
+ * so just return SUCCESS.
+ */
+int jbd2_complete_transaction(journal_t *journal, tid_t tid)
+{
+ int need_to_wait = 1;
+
+ read_lock(&journal->j_state_lock);
+ if (journal->j_running_transaction &&
+ journal->j_running_transaction->t_tid == tid) {
+ if (journal->j_commit_request != tid) {
+ /* transaction not yet started, so request it */
+ read_unlock(&journal->j_state_lock);
+ jbd2_log_start_commit(journal, tid);
+ goto wait_commit;
+ }
+ } else if (!(journal->j_committing_transaction &&
+ journal->j_committing_transaction->t_tid == tid))
+ need_to_wait = 0;
+ read_unlock(&journal->j_state_lock);
+ if (!need_to_wait)
+ return 0;
+wait_commit:
+ return jbd2_log_wait_commit(journal, tid);
+}
+EXPORT_SYMBOL(jbd2_complete_transaction);
+
+/*
* Log buffer allocation routines:
*/
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index 0796c45d0d4d..01bfe7662751 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -144,6 +144,9 @@ int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout)
timeout);
if (ret < 0)
return -ERESTARTSYS;
+ /* Reset the lock status after a server reboot so we resend */
+ if (block->b_status == nlm_lck_denied_grace_period)
+ block->b_status = nlm_lck_blocked;
req->a_res.status = block->b_status;
return 0;
}
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 7e529c3c45c0..9760ecb9b60f 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -550,9 +550,6 @@ again:
status = nlmclnt_block(block, req, NLMCLNT_POLL_TIMEOUT);
if (status < 0)
break;
- /* Resend the blocking lock request after a server reboot */
- if (resp->status == nlm_lck_denied_grace_period)
- continue;
if (resp->status != nlm_lck_blocked)
break;
}
diff --git a/fs/namespace.c b/fs/namespace.c
index 341d3f564082..e945b81be7d4 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2238,12 +2238,11 @@ long do_mount(const char *dev_name, const char *dir_name,
retval = security_sb_mount(dev_name, &path,
type_page, flags, data_page);
+ if (!retval && !may_mount())
+ retval = -EPERM;
if (retval)
goto dput_out;
- if (!may_mount())
- return -EPERM;
-
/* Default to relatime unless overriden */
if (!(flags & MS_NOATIME))
mnt_flags |= MNT_RELATIME;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 0ad025eb523b..c7856a1cef06 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1380,6 +1380,12 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
case -ENOMEM:
err = 0;
goto out;
+ case -NFS4ERR_DELAY:
+ case -NFS4ERR_GRACE:
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
+ ssleep(1);
+ err = -EAGAIN;
+ goto out;
}
set_bit(NFS_DELEGATED_STATE, &state->flags);
err = nfs4_handle_exception(server, err, &exception);
@@ -5025,6 +5031,12 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
nfs4_schedule_stateid_recovery(server, state);
err = 0;
goto out;
+ case -NFS4ERR_DELAY:
+ case -NFS4ERR_GRACE:
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
+ ssleep(1);
+ err = -EAGAIN;
+ goto out;
case -ENOMEM:
case -NFS4ERR_DENIED:
/* kill_proc(fl->fl_pid, SIGLOST, 1); */
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index ae73175e6e68..8288b0882826 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -931,14 +931,14 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
cstate, stateid, WR_STATE, &filp);
- if (filp)
- get_file(filp);
- nfs4_unlock_state();
-
if (status) {
+ nfs4_unlock_state();
dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
return status;
}
+ if (filp)
+ get_file(filp);
+ nfs4_unlock_state();
cnt = write->wr_buflen;
write->wr_how_written = write->wr_stable_how;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 2e27430b9070..f9a5e62b7683 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -210,13 +210,7 @@ static void __nfs4_file_put_access(struct nfs4_file *fp, int oflag)
{
if (atomic_dec_and_test(&fp->fi_access[oflag])) {
nfs4_file_put_fd(fp, oflag);
- /*
- * It's also safe to get rid of the RDWR open *if*
- * we no longer have need of the other kind of access
- * or if we already have the other kind of open:
- */
- if (fp->fi_fds[1-oflag]
- || atomic_read(&fp->fi_access[1 - oflag]) == 0)
+ if (atomic_read(&fp->fi_access[1 - oflag]) == 0)
nfs4_file_put_fd(fp, O_RDWR);
}
}
@@ -267,7 +261,7 @@ kmem_cache *slab)
min_stateid = 0;
return stid;
out_free:
- kfree(stid);
+ kmem_cache_free(slab, stid);
return NULL;
}
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index a2720071f282..6eb0dc55709e 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -344,10 +344,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
all 32 bits of 'nseconds'. */
READ_BUF(12);
len += 12;
- READ32(dummy32);
- if (dummy32)
- return nfserr_inval;
- READ32(iattr->ia_atime.tv_sec);
+ READ64(iattr->ia_atime.tv_sec);
READ32(iattr->ia_atime.tv_nsec);
if (iattr->ia_atime.tv_nsec >= (u32)1000000000)
return nfserr_inval;
@@ -370,10 +367,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
all 32 bits of 'nseconds'. */
READ_BUF(12);
len += 12;
- READ32(dummy32);
- if (dummy32)
- return nfserr_inval;
- READ32(iattr->ia_mtime.tv_sec);
+ READ64(iattr->ia_mtime.tv_sec);
READ32(iattr->ia_mtime.tv_nsec);
if (iattr->ia_mtime.tv_nsec >= (u32)1000000000)
return nfserr_inval;
@@ -2401,8 +2395,7 @@ out_acl:
if (bmval1 & FATTR4_WORD1_TIME_ACCESS) {
if ((buflen -= 12) < 0)
goto out_resource;
- WRITE32(0);
- WRITE32(stat.atime.tv_sec);
+ WRITE64((s64)stat.atime.tv_sec);
WRITE32(stat.atime.tv_nsec);
}
if (bmval1 & FATTR4_WORD1_TIME_DELTA) {
@@ -2415,15 +2408,13 @@ out_acl:
if (bmval1 & FATTR4_WORD1_TIME_METADATA) {
if ((buflen -= 12) < 0)
goto out_resource;
- WRITE32(0);
- WRITE32(stat.ctime.tv_sec);
+ WRITE64((s64)stat.ctime.tv_sec);
WRITE32(stat.ctime.tv_nsec);
}
if (bmval1 & FATTR4_WORD1_TIME_MODIFY) {
if ((buflen -= 12) < 0)
goto out_resource;
- WRITE32(0);
- WRITE32(stat.mtime.tv_sec);
+ WRITE64((s64)stat.mtime.tv_sec);
WRITE32(stat.mtime.tv_nsec);
}
if (bmval1 & FATTR4_WORD1_MOUNTED_ON_FILEID) {
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index e0f7c1241a6a..5fe21d69b815 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -572,7 +572,6 @@ static int inotify_update_existing_watch(struct fsnotify_group *group,
int add = (arg & IN_MASK_ADD);
int ret;
- /* don't allow invalid bits: we don't want flags set */
mask = inotify_arg_to_mask(arg);
fsn_mark = fsnotify_find_inode_mark(group, inode);
@@ -623,7 +622,6 @@ static int inotify_new_watch(struct fsnotify_group *group,
struct idr *idr = &group->inotify_data.idr;
spinlock_t *idr_lock = &group->inotify_data.idr_lock;
- /* don't allow invalid bits: we don't want flags set */
mask = inotify_arg_to_mask(arg);
tmp_i_mark = kmem_cache_alloc(inotify_inode_mark_cachep, GFP_KERNEL);
@@ -751,6 +749,10 @@ SYSCALL_DEFINE3(inotify_add_watch, int, fd, const char __user *, pathname,
int ret;
unsigned flags = 0;
+ /* don't allow invalid bits: we don't want flags set */
+ if (unlikely(!(mask & ALL_INOTIFY_BITS)))
+ return -EINVAL;
+
f = fdget(fd);
if (unlikely(!f.file))
return -EBADF;
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index e14512678c9b..6f31590dd125 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -1012,6 +1012,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
enum kobj_ns_type type;
const void *ns;
ino_t ino;
+ loff_t off;
type = sysfs_ns_type(parent_sd);
ns = sysfs_info(dentry->d_sb)->ns[type];
@@ -1034,6 +1035,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
return 0;
}
mutex_lock(&sysfs_mutex);
+ off = filp->f_pos;
for (pos = sysfs_dir_pos(ns, parent_sd, filp->f_pos, pos);
pos;
pos = sysfs_dir_next_pos(ns, parent_sd, filp->f_pos, pos)) {
@@ -1045,19 +1047,24 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
len = strlen(name);
ino = pos->s_ino;
type = dt_type(pos);
- filp->f_pos = pos->s_hash;
+ off = filp->f_pos = pos->s_hash;
filp->private_data = sysfs_get(pos);
mutex_unlock(&sysfs_mutex);
- ret = filldir(dirent, name, len, filp->f_pos, ino, type);
+ ret = filldir(dirent, name, len, off, ino, type);
mutex_lock(&sysfs_mutex);
if (ret < 0)
break;
}
mutex_unlock(&sysfs_mutex);
- if ((filp->f_pos > 1) && !pos) { /* EOF */
- filp->f_pos = INT_MAX;
+
+ /* don't reference last entry if its refcount is dropped */
+ if (!pos) {
filp->private_data = NULL;
+
+ /* EOF and not changed as 0 or 1 in read/write path */
+ if (off == filp->f_pos && off > 1)
+ filp->f_pos = INT_MAX;
}
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-13 14:24:27 +0000