From: Christoph Hellwig <hch@lst.de> To: "J. Bruce Fields" <bfields@fieldses.org> Cc: linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, Jeff Layton <jlayton@primarydata.com>, xfs@oss.sgi.com Subject: [PATCH 02/18] fs: add FL_LAYOUT lease type Date: Tue, 6 Jan 2015 17:28:25 +0100 [thread overview] Message-ID: <1420561721-9150-3-git-send-email-hch@lst.de> (raw) In-Reply-To: <1420561721-9150-1-git-send-email-hch@lst.de> This (ab-)uses the file locking code to allow filesystems to recall outstanding pNFS layouts on a file. This new lease type is similar but not quite the same as FL_DELEG. A FL_LAYOUT lease can always be granted, an a per-filesystem lock (XFS iolock for the initial implementation) ensures not FL_LAYOUT leases granted when we would need to recall them. Also included are changes that allow multiple outstanding read leases of different types on the same file as long as they have a differnt owner. This wasn't a problem until now as nfsd never set FL_LEASE leases, and no one else used FL_DELEG leases, but given that nfsd will also issues FL_LAYOUT leases we will have to handle it now. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/locks.c | 28 +++++++++++++++++++--------- fs/nfsd/nfs4state.c | 2 +- include/linux/fs.h | 16 ++++++++++++++++ 3 files changed, 36 insertions(+), 10 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index 735b8d3..6cf41f8 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -137,7 +137,7 @@ #define IS_POSIX(fl) (fl->fl_flags & FL_POSIX) #define IS_FLOCK(fl) (fl->fl_flags & FL_FLOCK) -#define IS_LEASE(fl) (fl->fl_flags & (FL_LEASE|FL_DELEG)) +#define IS_LEASE(fl) (fl->fl_flags & (FL_LEASE|FL_DELEG|FL_LAYOUT)) #define IS_OFDLCK(fl) (fl->fl_flags & FL_OFDLCK) static bool lease_breaking(struct file_lock *fl) @@ -1348,6 +1348,8 @@ static void time_out_leases(struct inode *inode, struct list_head *dispose) static bool leases_conflict(struct file_lock *lease, struct file_lock *breaker) { + if ((breaker->fl_flags & FL_LAYOUT) != (lease->fl_flags & FL_LAYOUT)) + return false; if ((breaker->fl_flags & FL_DELEG) && (lease->fl_flags & FL_LEASE)) return false; return locks_conflict(breaker, lease); @@ -1560,11 +1562,14 @@ int fcntl_getlease(struct file *filp) * conflict with the lease we're trying to set. */ static int -check_conflicting_open(const struct dentry *dentry, const long arg) +check_conflicting_open(const struct dentry *dentry, const long arg, int flags) { int ret = 0; struct inode *inode = dentry->d_inode; + if (flags & FL_LAYOUT) + return 0; + if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0)) return -EAGAIN; @@ -1608,7 +1613,7 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr spin_lock(&inode->i_lock); time_out_leases(inode, &dispose); - error = check_conflicting_open(dentry, arg); + error = check_conflicting_open(dentry, arg, lease->fl_flags); if (error) goto out; @@ -1624,10 +1629,13 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr for (before = &inode->i_flock; ((fl = *before) != NULL) && IS_LEASE(fl); before = &fl->fl_next) { - if (fl->fl_file == filp) { + + if (fl->fl_file == filp && + fl->fl_owner == lease->fl_owner) { my_before = before; continue; } + /* * No exclusive leases if someone else has a lease on * this file: @@ -1665,7 +1673,7 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr * precedes these checks. */ smp_mb(); - error = check_conflicting_open(dentry, arg); + error = check_conflicting_open(dentry, arg, lease->fl_flags); if (error) goto out_unlink; @@ -1685,7 +1693,7 @@ out_unlink: goto out; } -static int generic_delete_lease(struct file *filp) +static int generic_delete_lease(struct file *filp, void *priv) { int error = -EAGAIN; struct file_lock *fl, **before; @@ -1698,7 +1706,8 @@ static int generic_delete_lease(struct file *filp) for (before = &inode->i_flock; ((fl = *before) != NULL) && IS_LEASE(fl); before = &fl->fl_next) { - if (fl->fl_file == filp) + if (fl->fl_file == filp && + priv == fl->fl_owner) break; } trace_generic_delete_lease(inode, fl); @@ -1737,13 +1746,14 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp, switch (arg) { case F_UNLCK: - return generic_delete_lease(filp); + return generic_delete_lease(filp, *priv); case F_RDLCK: case F_WRLCK: if (!(*flp)->fl_lmops->lm_break) { WARN_ON_ONCE(1); return -ENOLCK; } + return generic_add_lease(filp, arg, flp, priv); default: return -EINVAL; @@ -1816,7 +1826,7 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg) int fcntl_setlease(unsigned int fd, struct file *filp, long arg) { if (arg == F_UNLCK) - return vfs_setlease(filp, F_UNLCK, NULL, NULL); + return vfs_setlease(filp, F_UNLCK, NULL, (void **)&filp); return do_fcntl_add_lease(fd, filp, arg); } diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 277f8b8..2505b68 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -693,7 +693,7 @@ static void nfs4_put_deleg_lease(struct nfs4_file *fp) spin_unlock(&fp->fi_lock); if (filp) { - vfs_setlease(filp, F_UNLCK, NULL, NULL); + vfs_setlease(filp, F_UNLCK, NULL, (void **)&fp); fput(filp); } } diff --git a/include/linux/fs.h b/include/linux/fs.h index f90c028..204cf91 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -875,6 +875,7 @@ static inline struct file *get_file(struct file *f) #define FL_DOWNGRADE_PENDING 256 /* Lease is being downgraded */ #define FL_UNLOCK_PENDING 512 /* Lease is being broken */ #define FL_OFDLCK 1024 /* lock is "owned" by struct file */ +#define FL_LAYOUT 2048 /* outstanding pNFS layout */ /* * Special return value from posix_lock_file() and vfs_lock_file() for @@ -2017,6 +2018,16 @@ static inline int break_deleg_wait(struct inode **delegated_inode) return ret; } +static inline int break_layout(struct inode *inode, bool wait) +{ + smp_mb(); + if (inode->i_flock) + return __break_lease(inode, + wait ? O_WRONLY : O_WRONLY | O_NONBLOCK, + FL_LAYOUT); + return 0; +} + #else /* !CONFIG_FILE_LOCKING */ static inline int locks_mandatory_locked(struct file *file) { @@ -2072,6 +2083,11 @@ static inline int break_deleg_wait(struct inode **delegated_inode) return 0; } +static inline int break_layout(struct inode *inode, bool wait) +{ + return 0; +} + #endif /* CONFIG_FILE_LOCKING */ /* fs/open.c */ -- 1.9.1 _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de> To: "J. Bruce Fields" <bfields@fieldses.org> Cc: Jeff Layton <jlayton@primarydata.com>, linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com Subject: [PATCH 02/18] fs: add FL_LAYOUT lease type Date: Tue, 6 Jan 2015 17:28:25 +0100 [thread overview] Message-ID: <1420561721-9150-3-git-send-email-hch@lst.de> (raw) In-Reply-To: <1420561721-9150-1-git-send-email-hch@lst.de> This (ab-)uses the file locking code to allow filesystems to recall outstanding pNFS layouts on a file. This new lease type is similar but not quite the same as FL_DELEG. A FL_LAYOUT lease can always be granted, an a per-filesystem lock (XFS iolock for the initial implementation) ensures not FL_LAYOUT leases granted when we would need to recall them. Also included are changes that allow multiple outstanding read leases of different types on the same file as long as they have a differnt owner. This wasn't a problem until now as nfsd never set FL_LEASE leases, and no one else used FL_DELEG leases, but given that nfsd will also issues FL_LAYOUT leases we will have to handle it now. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/locks.c | 28 +++++++++++++++++++--------- fs/nfsd/nfs4state.c | 2 +- include/linux/fs.h | 16 ++++++++++++++++ 3 files changed, 36 insertions(+), 10 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index 735b8d3..6cf41f8 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -137,7 +137,7 @@ #define IS_POSIX(fl) (fl->fl_flags & FL_POSIX) #define IS_FLOCK(fl) (fl->fl_flags & FL_FLOCK) -#define IS_LEASE(fl) (fl->fl_flags & (FL_LEASE|FL_DELEG)) +#define IS_LEASE(fl) (fl->fl_flags & (FL_LEASE|FL_DELEG|FL_LAYOUT)) #define IS_OFDLCK(fl) (fl->fl_flags & FL_OFDLCK) static bool lease_breaking(struct file_lock *fl) @@ -1348,6 +1348,8 @@ static void time_out_leases(struct inode *inode, struct list_head *dispose) static bool leases_conflict(struct file_lock *lease, struct file_lock *breaker) { + if ((breaker->fl_flags & FL_LAYOUT) != (lease->fl_flags & FL_LAYOUT)) + return false; if ((breaker->fl_flags & FL_DELEG) && (lease->fl_flags & FL_LEASE)) return false; return locks_conflict(breaker, lease); @@ -1560,11 +1562,14 @@ int fcntl_getlease(struct file *filp) * conflict with the lease we're trying to set. */ static int -check_conflicting_open(const struct dentry *dentry, const long arg) +check_conflicting_open(const struct dentry *dentry, const long arg, int flags) { int ret = 0; struct inode *inode = dentry->d_inode; + if (flags & FL_LAYOUT) + return 0; + if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0)) return -EAGAIN; @@ -1608,7 +1613,7 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr spin_lock(&inode->i_lock); time_out_leases(inode, &dispose); - error = check_conflicting_open(dentry, arg); + error = check_conflicting_open(dentry, arg, lease->fl_flags); if (error) goto out; @@ -1624,10 +1629,13 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr for (before = &inode->i_flock; ((fl = *before) != NULL) && IS_LEASE(fl); before = &fl->fl_next) { - if (fl->fl_file == filp) { + + if (fl->fl_file == filp && + fl->fl_owner == lease->fl_owner) { my_before = before; continue; } + /* * No exclusive leases if someone else has a lease on * this file: @@ -1665,7 +1673,7 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr * precedes these checks. */ smp_mb(); - error = check_conflicting_open(dentry, arg); + error = check_conflicting_open(dentry, arg, lease->fl_flags); if (error) goto out_unlink; @@ -1685,7 +1693,7 @@ out_unlink: goto out; } -static int generic_delete_lease(struct file *filp) +static int generic_delete_lease(struct file *filp, void *priv) { int error = -EAGAIN; struct file_lock *fl, **before; @@ -1698,7 +1706,8 @@ static int generic_delete_lease(struct file *filp) for (before = &inode->i_flock; ((fl = *before) != NULL) && IS_LEASE(fl); before = &fl->fl_next) { - if (fl->fl_file == filp) + if (fl->fl_file == filp && + priv == fl->fl_owner) break; } trace_generic_delete_lease(inode, fl); @@ -1737,13 +1746,14 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp, switch (arg) { case F_UNLCK: - return generic_delete_lease(filp); + return generic_delete_lease(filp, *priv); case F_RDLCK: case F_WRLCK: if (!(*flp)->fl_lmops->lm_break) { WARN_ON_ONCE(1); return -ENOLCK; } + return generic_add_lease(filp, arg, flp, priv); default: return -EINVAL; @@ -1816,7 +1826,7 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg) int fcntl_setlease(unsigned int fd, struct file *filp, long arg) { if (arg == F_UNLCK) - return vfs_setlease(filp, F_UNLCK, NULL, NULL); + return vfs_setlease(filp, F_UNLCK, NULL, (void **)&filp); return do_fcntl_add_lease(fd, filp, arg); } diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 277f8b8..2505b68 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -693,7 +693,7 @@ static void nfs4_put_deleg_lease(struct nfs4_file *fp) spin_unlock(&fp->fi_lock); if (filp) { - vfs_setlease(filp, F_UNLCK, NULL, NULL); + vfs_setlease(filp, F_UNLCK, NULL, (void **)&fp); fput(filp); } } diff --git a/include/linux/fs.h b/include/linux/fs.h index f90c028..204cf91 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -875,6 +875,7 @@ static inline struct file *get_file(struct file *f) #define FL_DOWNGRADE_PENDING 256 /* Lease is being downgraded */ #define FL_UNLOCK_PENDING 512 /* Lease is being broken */ #define FL_OFDLCK 1024 /* lock is "owned" by struct file */ +#define FL_LAYOUT 2048 /* outstanding pNFS layout */ /* * Special return value from posix_lock_file() and vfs_lock_file() for @@ -2017,6 +2018,16 @@ static inline int break_deleg_wait(struct inode **delegated_inode) return ret; } +static inline int break_layout(struct inode *inode, bool wait) +{ + smp_mb(); + if (inode->i_flock) + return __break_lease(inode, + wait ? O_WRONLY : O_WRONLY | O_NONBLOCK, + FL_LAYOUT); + return 0; +} + #else /* !CONFIG_FILE_LOCKING */ static inline int locks_mandatory_locked(struct file *file) { @@ -2072,6 +2083,11 @@ static inline int break_deleg_wait(struct inode **delegated_inode) return 0; } +static inline int break_layout(struct inode *inode, bool wait) +{ + return 0; +} + #endif /* CONFIG_FILE_LOCKING */ /* fs/open.c */ -- 1.9.1
next prev parent reply other threads:[~2015-01-06 16:28 UTC|newest] Thread overview: 153+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-01-06 16:28 a simple and scalable pNFS block layout server Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 01/18] nfs: add LAYOUT_TYPE_MAX enum value Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [this message] 2015-01-06 16:28 ` [PATCH 02/18] fs: add FL_LAYOUT lease type Christoph Hellwig 2015-01-06 18:46 ` Jeff Layton 2015-01-06 18:46 ` Jeff Layton 2015-01-07 10:30 ` Christoph Hellwig 2015-01-07 10:30 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 03/18] nfsd: factor out a helper to decode nfstime4 values Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-4-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-09 23:02 ` Tom Haynes 2015-01-09 23:02 ` Tom Haynes 2015-01-09 23:02 ` Tom Haynes 2015-01-11 11:42 ` Christoph Hellwig 2015-01-11 11:42 ` Christoph Hellwig [not found] ` <20150111114242.GA11939-jcswGhMUV9g@public.gmane.org> 2015-01-11 23:53 ` Tom Haynes 2015-01-11 23:53 ` Tom Haynes 2015-01-11 23:53 ` Tom Haynes 2015-01-06 16:28 ` [PATCH 04/18] nfsd: move nfsd_fh_match to nfsfh.h Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 05/18] nfsd: add fh_fsid_match helper Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 06/18] nfsd: make lookup/alloc/unhash_stid available outside nfs4state.c Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 07/18] nfsd: make find/get/put file " Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-06 16:28 ` [PATCH 08/18] nfsd: make find_any_file " Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 10/18] nfsd: implement pNFS layout recalls Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-11-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-06 17:25 ` J. Bruce Fields 2015-01-06 17:25 ` J. Bruce Fields 2015-01-06 17:25 ` J. Bruce Fields 2015-01-06 17:42 ` Christoph Hellwig 2015-01-06 17:42 ` Christoph Hellwig [not found] ` <20150106174214.GB16200-jcswGhMUV9g@public.gmane.org> 2015-01-06 17:59 ` Tom Haynes 2015-01-06 17:59 ` Tom Haynes 2015-01-06 17:59 ` Tom Haynes 2015-01-06 16:28 ` [PATCH 11/18] nfsd: update documentation for pNFS support Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 12/18] nfsd: add trace events Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 14/18] nfsd: pNFS block layout driver Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 17:16 ` J. Bruce Fields 2015-01-06 17:16 ` J. Bruce Fields 2015-01-06 17:39 ` Christoph Hellwig 2015-01-06 17:39 ` Christoph Hellwig 2015-01-06 19:39 ` J. Bruce Fields 2015-01-06 19:39 ` J. Bruce Fields [not found] ` <20150106193949.GD28003-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org> 2015-01-06 19:42 ` Jeff Layton 2015-01-06 19:42 ` Jeff Layton 2015-01-06 19:42 ` Jeff Layton 2015-01-07 10:28 ` Christoph Hellwig 2015-01-07 10:28 ` Christoph Hellwig 2015-01-08 20:41 ` Jeff Layton 2015-01-08 20:41 ` Jeff Layton 2015-01-08 20:54 ` J. Bruce Fields 2015-01-08 20:54 ` J. Bruce Fields [not found] ` <1420561721-9150-15-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-12 4:56 ` Tom Haynes 2015-01-12 4:56 ` Tom Haynes 2015-01-12 4:56 ` Tom Haynes 2015-01-12 12:43 ` Christoph Hellwig 2015-01-12 12:43 ` Christoph Hellwig 2015-01-12 6:14 ` Tom Haynes 2015-01-12 6:14 ` Tom Haynes 2015-01-12 12:46 ` Christoph Hellwig 2015-01-12 12:46 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 15/18] xfs: pass a 64-bit count argument to xfs_iomap_write_unwritten Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 16/18] xfs: do not allocate blocks when converting unwritten extents Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 23:21 ` Dave Chinner 2015-01-06 23:21 ` Dave Chinner 2015-01-06 16:28 ` [PATCH 17/18] xfs: implement pnfs export operations Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-07 0:24 ` Dave Chinner 2015-01-07 0:24 ` Dave Chinner 2015-01-07 10:40 ` Christoph Hellwig 2015-01-07 10:40 ` Christoph Hellwig 2015-01-07 10:40 ` Christoph Hellwig 2015-01-07 21:11 ` Dave Chinner 2015-01-07 21:11 ` Dave Chinner 2015-01-07 21:11 ` Dave Chinner 2015-01-08 12:43 ` Christoph Hellwig 2015-01-08 12:43 ` Christoph Hellwig 2015-01-08 21:04 ` Dave Chinner 2015-01-08 21:04 ` Dave Chinner 2015-01-09 11:41 ` Christoph Hellwig 2015-01-09 11:41 ` Christoph Hellwig [not found] ` <20150109114159.GA25728-jcswGhMUV9g@public.gmane.org> 2015-01-12 3:04 ` Dave Chinner 2015-01-12 3:04 ` Dave Chinner 2015-01-12 3:04 ` Dave Chinner 2015-01-14 10:08 ` Christoph Hellwig 2015-01-14 10:08 ` Christoph Hellwig 2015-01-14 10:08 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 09/18] nfsd: implement pNFS operations Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-10-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-09 0:48 ` Jeff Layton 2015-01-09 0:48 ` Jeff Layton 2015-01-09 0:48 ` Jeff Layton 2015-01-09 10:05 ` Christoph Hellwig 2015-01-09 10:05 ` Christoph Hellwig 2015-01-09 16:51 ` Jeff Layton 2015-01-09 16:51 ` Jeff Layton 2015-01-09 17:16 ` Christoph Hellwig 2015-01-09 17:16 ` Christoph Hellwig 2015-01-09 17:28 ` Jeff Layton 2015-01-09 17:28 ` Jeff Layton 2015-01-09 17:33 ` Jeff Layton 2015-01-09 17:33 ` Jeff Layton 2015-01-09 17:43 ` Trond Myklebust 2015-01-09 17:43 ` Trond Myklebust 2015-01-09 18:49 ` rfc5661 errata 3901, was: " Christoph Hellwig 2015-01-14 19:16 ` Tom Haynes 2015-01-15 16:26 ` Christoph Hellwig 2015-01-15 16:30 ` [nfsv4] " Trond Myklebust 2015-01-12 17:54 ` Tom Haynes 2015-01-12 17:54 ` Tom Haynes 2015-01-12 17:54 ` Tom Haynes 2015-01-06 16:28 ` [PATCH 13/18] exportfs: add methods for block layout exports Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 18/18] xfs: recall pNFS layouts on conflicting access Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-19-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-06 23:18 ` Dave Chinner 2015-01-06 23:18 ` Dave Chinner 2015-01-06 23:18 ` Dave Chinner 2015-01-07 10:31 ` Christoph Hellwig 2015-01-07 10:31 ` Christoph Hellwig 2015-01-06 17:32 ` a simple and scalable pNFS block layout server J. Bruce Fields 2015-01-06 17:32 ` J. Bruce Fields 2015-01-06 17:56 ` Christoph Hellwig 2015-01-06 17:56 ` Christoph Hellwig [not found] ` <20150106175611.GA16413-jcswGhMUV9g@public.gmane.org> 2015-01-06 18:37 ` Jeff Layton 2015-01-06 18:37 ` Jeff Layton 2015-01-06 18:37 ` Jeff Layton 2015-01-06 18:39 ` Weston Andros Adamson 2015-01-06 18:39 ` Weston Andros Adamson 2015-01-06 18:39 ` Weston Andros Adamson 2015-01-06 19:17 ` J. Bruce Fields 2015-01-06 19:17 ` J. Bruce Fields 2015-01-06 19:17 ` J. Bruce Fields
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