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| author | Todd Poynor <toddpoynor@google.com> | 2012-04-19 15:15:48 -0700 |
|---|---|---|
| committer | Todd Poynor <toddpoynor@google.com> | 2012-04-19 15:20:03 -0700 |
| commit | 94225ab0bef6f32108eaa410bb894caa2b4317e2 (patch) | |
| tree | 3696c83cc5109c7e439c8228fe6be72a3a4a74fe /init | |
| parent | 801cb6260fb5cae3bbc513927b583447c38d9deb (diff) | |
| parent | 0527fde0639955203ad48a9fd83bd6fc35e82e07 (diff) | |
| download | kernel_samsung_aries-94225ab0bef6f32108eaa410bb894caa2b4317e2.zip kernel_samsung_aries-94225ab0bef6f32108eaa410bb894caa2b4317e2.tar.gz kernel_samsung_aries-94225ab0bef6f32108eaa410bb894caa2b4317e2.tar.bz2 | |
Merge linux-stable 3.0.28 into android-3.0
Change-Id: Iee820738e53627f5d0447a87ceff34443aa72786
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Diffstat (limited to 'init')
| -rw-r--r-- | init/do_mounts.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/init/do_mounts.c b/init/do_mounts.c index c0851a8..ef6478f 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -360,15 +360,42 @@ out: } #ifdef CONFIG_ROOT_NFS + +#define NFSROOT_TIMEOUT_MIN 5 +#define NFSROOT_TIMEOUT_MAX 30 +#define NFSROOT_RETRY_MAX 5 + static int __init mount_nfs_root(void) { char *root_dev, *root_data; + unsigned int timeout; + int try, err; - if (nfs_root_data(&root_dev, &root_data) != 0) - return 0; - if (do_mount_root(root_dev, "nfs", root_mountflags, root_data) != 0) + err = nfs_root_data(&root_dev, &root_data); + if (err != 0) return 0; - return 1; + + /* + * The server or network may not be ready, so try several + * times. Stop after a few tries in case the client wants + * to fall back to other boot methods. + */ + timeout = NFSROOT_TIMEOUT_MIN; + for (try = 1; ; try++) { + err = do_mount_root(root_dev, "nfs", + root_mountflags, root_data); + if (err == 0) + return 1; + if (try > NFSROOT_RETRY_MAX) + break; + + /* Wait, in case the server refused us immediately */ + ssleep(timeout); + timeout <<= 1; + if (timeout > NFSROOT_TIMEOUT_MAX) + timeout = NFSROOT_TIMEOUT_MAX; + } + return 0; } #endif |